IKMC 2027 - Grades 7-8 - Self-study SET 9 - Thematic Batch 3 Question 4

Exactly one of three closed rooms contains a lion. Door 1 says “This room contains a lion”. Door 2 says “This room does not contain a lion”. Door 3 says “2+3=2×3”. Exactly one statement is true. Which room contains the lion?