diff --git a/your-code/main.ipynb b/your-code/main.ipynb
index 01257d4..99f2b2d 100755
--- a/your-code/main.ipynb
+++ b/your-code/main.ipynb
@@ -21,7 +21,16 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import math"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 81,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -29,10 +38,36 @@
     "    \"\"\"\n",
     "    Input: list and lambda expression\n",
     "    Output: the transformed list\n",
+    "    return square\n",
     "    \"\"\"\n",
+    "    # your code here, I chose the function to return square to every number in a list \n",
+    "    i = 0\n",
     "    \n",
-    "    # your code here\n",
-    "    "
+    "    while i < len(lst):\n",
+    "        lst[i] = lmbda(lst[i])\n",
+    "        i += 1   \n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 82,
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "TypeError",
+     "evalue": "'int' object is not callable",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
+      "\u001b[0;32m<ipython-input-82-47ac0589ba82>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mmodify_list\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m2\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;36m3\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;36m3\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[0;32m<ipython-input-81-73221edf975e>\u001b[0m in \u001b[0;36mmodify_list\u001b[0;34m(lst, lmbda)\u001b[0m\n\u001b[1;32m      9\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     10\u001b[0m     \u001b[0;32mwhile\u001b[0m \u001b[0mi\u001b[0m \u001b[0;34m<\u001b[0m \u001b[0mlen\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mlst\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 11\u001b[0;31m         \u001b[0mlst\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mlmbda\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mlst\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mi\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     12\u001b[0m         \u001b[0mi\u001b[0m \u001b[0;34m+=\u001b[0m \u001b[0;36m1\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+      "\u001b[0;31mTypeError\u001b[0m: 'int' object is not callable"
+     ]
+    }
+   ],
+   "source": [
+    "modify_list([2,3], 3)"
    ]
   },
   {
@@ -46,11 +81,12 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 47,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code here"
+    "# your code here\n",
+    "celsius_to_kelvin = lambda x: x + 273.15"
    ]
   },
   {
@@ -62,13 +98,31 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 52,
    "metadata": {},
    "outputs": [],
    "source": [
     "temps = [12, 23, 38, -55, 24]\n",
     "\n",
-    "# your code here"
+    "# your code here\n",
+    "kelvin = list(map(celsius_to_kelvin, temps))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 53,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[285.15, 296.15, 311.15, 218.14999999999998, 297.15]\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(kelvin)"
    ]
   },
   {
@@ -82,11 +136,32 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 49,
    "metadata": {},
    "outputs": [],
    "source": [
-    "# your code here"
+    "# your code here\n",
+    "mod = lambda x, y: 1 if x % y == 0 or y % x == 0 else 0"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 51,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "1"
+      ]
+     },
+     "execution_count": 51,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "mod(4,2)"
    ]
   },
   {
@@ -100,7 +175,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 83,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -111,7 +186,12 @@
     "    divisible by another number (to be passed later) and zero otherwise.\n",
     "    \"\"\"\n",
     "    \n",
-    "    # your code here"
+    "    # your code here\n",
+    "    \n",
+    "    for i in range(2,b):\n",
+    "        if mod(i,b) == 1:\n",
+    "            return 1        \n",
+    "    return 0"
    ]
   },
   {
@@ -123,11 +203,41 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 84,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0"
+      ]
+     },
+     "execution_count": 84,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "# your code here"
+    "divisor(5)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 86,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0\n"
+     ]
+    }
+   ],
+   "source": [
+    "# your code here\n",
+    "divisible5 = divisor(5)\n",
+    "print(divisible5)\n"
    ]
   },
   {
@@ -139,20 +249,42 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 89,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "1"
+      ]
+     },
+     "execution_count": 89,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "divisible5(10)"
+    "divisor(10)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 88,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "1"
+      ]
+     },
+     "execution_count": 88,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
-    "divisible5(8)"
+    "divisor(8)"
    ]
   },
   {
@@ -168,7 +300,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 30,
    "metadata": {},
    "outputs": [
     {
@@ -177,7 +309,7 @@
        "[(1,), (2,), (3,), (4,), (5,)]"
       ]
      },
-     "execution_count": 10,
+     "execution_count": 30,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -199,14 +331,30 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 69,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('Green', 'eggs'),\n",
+       " ('cheese', 'cheese'),\n",
+       " ('English', 'cucumber'),\n",
+       " ('tomato', 'tomato')]"
+      ]
+     },
+     "execution_count": 69,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "list1 = ['Green', 'cheese', 'English', 'tomato']\n",
     "list2 = ['eggs', 'cheese', 'cucumber', 'tomato']\n",
     "\n",
-    "# your code here"
+    "\n",
+    "# your code here\n",
+    "[x for x in zip(list1,list2)]"
    ]
   },
   {
@@ -222,14 +370,29 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 70,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('Engineering', 'Lab'),\n",
+       " ('Computer Science', 'Homework'),\n",
+       " ('Political Science', 'Essay'),\n",
+       " ('Mathematics', 'Module')]"
+      ]
+     },
+     "execution_count": 70,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "list1 = ['Engineering', 'Computer Science', 'Political Science', 'Mathematics']\n",
     "list2 = ['Lab', 'Homework', 'Essay', 'Module']\n",
     "\n",
-    "# your code here"
+    "# your code here\n",
+    "[x for x in zip(list1, list2)]"
    ]
   },
   {
@@ -243,14 +406,33 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 71,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[('Toyota', 1995), ('Honda', 1997), ('Audi', 2001), ('BMW', 2005)]"
+      ]
+     },
+     "execution_count": 71,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
    "source": [
     "d = {'Honda': 1997, 'Toyota': 1995, 'Audi': 2001, 'BMW': 2005}\n",
     "\n",
-    "# your code here"
+    "# your code here\n",
+    "sorted(d.items(), key = lambda x: x[1])"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -269,7 +451,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.8.5"
   }
  },
  "nbformat": 4,