How can a man go eight days without sleep?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

What kind of storm is always in a rush?

If 21x = 79x, what is the value of x?

There are two beautiful yet remote islands in the South Pacific. The Islanders born on one island always tell the truth, and the Islanders from the other island always lie.
You are on one of the islands and meet three Islanders. You ask the first which island they are from in the most appropriate Polynesian tongue, and he indicates that the other two Islanders are from the same island. You ask the second Islander the same question, and he also indicates that the other two Islanders are from the same island.
Can you guess what the third Islander will answer to the same question?

Solve this riddle by finding the odd one out from the rest.

Which is the smallest number that you can write using all the vowels exactly once?

Where do fish keep their money?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

What has a bottom at the top?