How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Who can jump higher than a Mountain?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

A California farmer owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner calls the farmer to see how much fruit is available for him to buy. The farmer knows the main trunk has 24 branches. Each branch has exactly 12 boughs and each bough has exactly 6 twigs. Since each twig bears one piece of fruit, how many plums will the farmer be able to deliver?

Can you make a six-letter word using the letters N, A and B ?

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?