Don't hit the walls, or you'll sink!
Press and hold the button for a long as you can endure. You might even get on the leaderboard!
Whatever you do, you must not press the red button.
What did the judge say to the dentist? "Do you swear to pull the tooth, the whole tooth and nothing but the tooth?"
"This sentence is false."
Is the sentence true or false?
Draw four straight lines, without lifting your imaginary pencil, that touch all nine dots in the grid.
Travel through all the doorways exactly once.