Good Riddles

Question: What English word is always spelled incorrectly?

Question: How can you make a TV, a bed, a dog, and a car liquid?

Question: Two criminals, Rob and Stan, are thrown into jail. But they plan to escape. There is a open window twenty feet off the ground. They try and try but are never able to reach it. They decide to dig their way out instead. After months of digging, they come up with a much easier plan. The plan works and they escape.

What was the plan?

Question: There are 100 coins scattered in a dark room. 90 have heads facing up and 10 are facing tails up. You cannot tell which coins are which. How do you sort the coins into two piles that contain the same number of tails up coins?

Question: You have 7 tennis balls that are all identical but one of them is slightly lighter than the others.

Using a balance scale and only two separate weightings, how can you find the light tennis ball?