Watch This "Impossible Object" Dovetail Cube Puzzle
How can you make a cube with dovetails on four sides? Think outside the box....
You have to lick a frog in order to survive. But WHICH frog?
You need to figure out three numbers based on a handful of clues. If you fail, you'll be eaten by mutant salamanders.
Mid-air refueling for the win!
This classic math problem can be maddening.