A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

Usually, a boxing match consists of twelve rounds. In a particular friendly match between two heavyweights, the match was finished in the ninth round itself as one of the boxers knocked out the other one.

But, in that fight, no man threw even a single punch.

How can this be possible?

What does a man do only once in his lifetime, but women do once a year after they are 29?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Why do we preferably have round manhole covers and not square ones?

What will you call your mother's brother's brother-in-law?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?