Suppose a clock takes 7 seconds to strike 7. How long does it take for the same clock to strike 10?
Riddle AnswerRiddles
Sum of Hats Puzzle
There are 3 people Abel, Bill and Clark. Three of them have numbers (positive integers) written on their hats. They can see the numbers on the other two hats but not their own. The number on one hat is the sum of the numbers on the other two hats. They are given this information and asked in turn if they can identify their number.
In the first round Abel, Bill and Clark each in turn say they don’t know. In the second round Abel is first to go and states his number is 50. What numbers are on Bill and Clark?
Riddle AnswerEverything to Someone
Old Auto
An old auto is to drive a stretch of 2 miles, up and down a hill. Because the auto is so old, you cannot drive the first mile (the ascent) faster than 15 miles per hour.

How fast do you have to drive the second mile (going down the hill) in order to get an average speed of 30 miles per hour?
Riddle AnswerMiddle of March and April
What can be seen in the middle of March and April that cannot be seen at the beginning or end of either month?
Riddle Answer