Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Using Only Five 5's and any mathematical operator make sum as 37

How many times in a given day, minutes and hour clock comes in a straight line ?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

When it's bad luck to meet a black cat?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

How can you make number one disappear by adding something to it?

I look at you, you look at me, I raise my right, you raise your left. What am I?

Joseph buys three kinds of chocolates for 100 rupees. The first one is priced at 5 rupees, second one at 3 rupees and third one at 0.5 rupees.

If he bought 100 chocolates in total, how many pieces do you think he bought each chocolate?