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?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

What breaks yet never falls, and what falls yet never breaks?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

Which of the below owl is odd one out?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?