Riddles and Answers

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Math

If it takes four rat catchers four minutes to kill four rats, how many rat catchers would be needed to catch 50 rats in 50 minutes?

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Math

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Math

A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost?

Math

I can have any and all colors that exist, and yet I show none. My size and strength are immeasurably immense, and yet I am invisible to the naked eye. What am I?