Can you solve below mathematical equation?

2^1234 - 2^1233

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

What is the difference between a jeweller and a jailer?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Next Number in the Series,

5, 16, 49, 104, ?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?