What is the next number in the series?

15 29 56 108 208 ?

How many times do a clock's hands overlap in a day ?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

Find the next number in the series below

21 32 54 87 131 ?

What is harder to catch the faster you run?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?