diff --git a/issues_test.go b/issues_test.go
index 85b6602..c2a289b 100644
--- a/issues_test.go
+++ b/issues_test.go
@@ -361,3 +361,50 @@ func TestIssue110(t *testing.T) {
 	expected := `["111","333"]`
 	assert.JSONEq(t, expected, result.String())
 }
+
+func TestIssue125_InOperatorWithVarsInSlice(t *testing.T) {
+	// This test demonstrates the issue: vars within slices are not resolved
+	rule := strings.NewReader(`{"in": [{"var": "needle"}, [{"var": "item1"}, {"var": "item2"}]]}`)
+	data := strings.NewReader(`{"needle":"foo", "item1":"bar", "item2":"foo"}`)
+
+	var result bytes.Buffer
+	err := jsonlogic.Apply(rule, data, &result)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Should be true because "foo" should be found in the resolved array ["bar", "foo"]
+	// Currently fails because it compares "foo" against unresolved [{"var": "item1"}, {"var": "item2"}]
+	expected := `true`
+	assert.JSONEq(t, expected, result.String())
+}
+
+func TestIssue125_CustomOperatorWithVarsInSlice(t *testing.T) {
+	// Add a custom operator that processes slice elements
+	jsonlogic.AddOperator("contains_any", func(values, data any) any {
+		parsed := values.([]any)
+		needle := parsed[0]
+		haystack := parsed[1].([]any)
+		
+		for _, item := range haystack {
+			if item == needle {
+				return true
+			}
+		}
+		return false
+	})
+
+	rule := strings.NewReader(`{"contains_any": [{"var": "needle"}, [{"var": "item1"}, {"var": "item2"}]]}`)
+	data := strings.NewReader(`{"needle":"foo", "item1":"bar", "item2":"foo"}`)
+
+	var result bytes.Buffer
+	err := jsonlogic.Apply(rule, data, &result)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Should be true because "foo" should be found in the resolved array ["bar", "foo"]
+	// Currently fails because the custom operator receives unresolved [{"var": "item1"}, {"var": "item2"}]
+	expected := `true`
+	assert.JSONEq(t, expected, result.String())
+}
diff --git a/jsonlogic.go b/jsonlogic.go
index 3546e9a..541b272 100644
--- a/jsonlogic.go
+++ b/jsonlogic.go
@@ -162,21 +162,13 @@ func parseValues(values, data any) any {
 		if typing.IsMap(value) {
 			parsed = append(parsed, apply(value, data))
 		} else {
-			parsed = append(parsed, value)
+			parsed = append(parsed, parseValues(value, data))
 		}
 	}
 
 	return parsed
 }
 
-// If values represents a map (an operation), returns the result. Otherwise returns the
-// values without parsing. This means that each of the returned values might be a subtree
-// of JSONLogic.
-// Used in lazy evaluation of "AND", "OR", and "IF" operators
-func getValuesWithoutParsing(values, data any) any {
-	return values.([]any)
-}
-
 func apply(rules, data any) any {
 	ruleMap := rules.(map[string]any)
 
diff --git a/logic.go b/logic.go
index 617386a..a2405a8 100644
--- a/logic.go
+++ b/logic.go
@@ -5,7 +5,7 @@ import (
 )
 
 func _and(values, data any) any {
-	values = getValuesWithoutParsing(values, data)
+	values = values.([]any)
 
 	var v float64
 
@@ -46,7 +46,7 @@ func _and(values, data any) any {
 }
 
 func _or(values, data any) any {
-	values = getValuesWithoutParsing(values, data)
+	values = values.([]any)
 
 	for _, value := range values.([]any) {
 		parsed := parseValues(value, data)
@@ -69,7 +69,7 @@ func evaluateClause(clause any, data any) any {
 }
 
 func conditional(values, data any) any {
-	values = getValuesWithoutParsing(values, data)
+	values = values.([]any)
 
 	clauses := values.([]any)