Can you solve below mathematical equation?

2^1234 - 2^1233

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

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

I am a word that begins with the letter “i.” If you add the letter “a” to me, I become a new word with a different meaning, but that sounds exactly the same. What word am I?

The dirtier I get, the whiter I look. Who am I?

How can you tell a raw egg from a hard-boiled egg?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

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?

There is a place where if I stand up straight, I will still be considered sideways.