What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

why number 8549176320 is one of a kind?

What does does this rebus picture means ?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

As shown in the picture below, we can see a boy hanging on the tree branch to save his life. There are various ways in which he can die like1. A snake hanging toward the right waiting to bite the boy.2. A roaring Lion near the tree.3. Two crocodiles are ready to attack if the boy reaches near water. The tree is chopped to some extent, so can fall as if he moves a lot. Can you give this boy an escape plan?

What can you serve, but never eat?