Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

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?

Count the Triangle in the figure given below:

I have eight fingers and two thumbs but I do not live. What Am I?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

What does this rebus means ?

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

Can you find a number that lies one third of the distance between 1/3 and 2/3?

Spot what is wrong here in below Picture?