Hey guys! Here's a fun challenge for you. Try to solve this tricky puzzle.

Q: A man enters a room with four doors, each with a color: red, green, yellow, and blue. The red door leads to lava, the green to a snake pit, the yellow to a great fall, and the blue to safety. However, in this challenge, he cannot choose the blue door. What does he do?

Ask Yes/No questions to figure out what door he chooses.