There are two brothers whose combined age is eleven years. One is ten years older than the other. What are their ages?

Riddle Answer# Math Riddles

## Apartment-House Mouse

Paula, the apartment-house mouse, is trying to get in shape. She wants to do this by climbing stairs. She starts on the fourth floor, climbs up five stories, down seven, up six, down three, and up four again. What floor is she on now?

Riddle Answer## 10 Cigarette Butts

Bruce is an inmate at a large prison, and like most of the other prisoners, he smokes cigarettes. During his time in the prison, Bruce finds that if he has 3 cigarette butts, he can cram them together and turn them into 1 full cigarette. Whenever he smokes a cigarette, it turns into a cigarette butt.

One day, Bruce is in his cell talking to one of his cellmates, Steve.

“I really want to smoke 5 cigarettes today, but all I have are these 10 cigarette butts,” Bruce tells Steve. “I’m not sure that will be enough.”

“Why don’t you borrow some of Tom’s cigarette butts?” asks Steve, pointing over to a small pile of cigarette butts on the bed of their third cellmate, Tom, who is out for the day on a community service project.

“I can’t,” Bruce says. “Tom always counts exactly how many cigarette butts are in his pile, and he’d probably kill me if he noticed that I had taken any.”

However, after thinking for a while, Bruce figures out a way that he can smoke 5 cigarettes without angering Tom. What is his plan?

Riddle Answer## Birthday Puzzle

The day before yesterday I was 25 and the next year I will be 28. This is true on only one day in a year. What day is my birthday?

Riddle Answer## 5 Cats

If 5 cats can catch 5 mice in 5 minutes, how many cats do you need to catch 100 mice in 100 minutes?

Riddle Answer