Can you solve below mathematical equation?

2^1234 - 2^1233

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Find the next number in the sequence

5 12 24 36 ?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

What time is it when an elephant sits on a fence?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?