A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What does an Island and the letter T have in common?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What is the centre of gravity?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

O_er_t_o_

Complete the missing letters of the given word.

What is the next number in this matchsticks series riddle?

What two things can you never eat for breakfast?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?