I look at you, you look at me I raise my right, you raise your left. What am I?

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?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Can you find the thief by just looking at the picture below?

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

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

Find the last number in the series below:

voN luJ yaM raM ---

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

What is the largest number you can write with just 3 digits?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?