You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Can you count the number of quadrilaterals in the picture below?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What is the next number in this matchsticks series riddle?

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?

The centre of the third figure is empty. What digit should fit inside?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?