Funny Riddles

Question: It smells like blue paint,
pours like green paint,
and it looks like a red truck.

What is it?

Question: What goes up and never comes down?

Question: Which word does not belong in the following list:

Stop cop mop chop prop shop or crop?

Question: A man wants to buy a used car. He finds a beautiful Buick for $9500, but he buys it without paying a dime.

How did he manage this?

Question: If a white house is white and a yellow house is yellow, what color is a green house?