Replace the question mark with the correct number in below Picture:

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

What has lots of eyes, but can’t see?

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

By what process could you make a 'Tea-Table' into food?

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?

When you stop to look, you can always see me. But if you try to touch me, you can never feel me. Although you walk towards me, I remain the same distance from you. What am I?

When 99 is considered higher than 100?

John is the son of Jacob.
So,
Jacob is the_____of John's father?