When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

What is the fastest way to double your money?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

If your uncle’s sister is not your aunt, what relation is she to you?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Before Mount Everest was discovered, what was the highest mountain in the world?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat

Why did Navjot Singh Sidhu put the new January calendar in the freezer

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?