Can you name some countries which do not have the alphabet 'A' in them?

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

O T T F F S S ?

Find the smallest sentence with all the English alphabet.

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

Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

Which number should replace the question mark?

Bay of Bengal is in which state?

What's a single-digit number with no value?