What does this rebus means ?

PROG WORKRESS

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Who always enjoys poor health?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

What begins with T, ends with T, and has T in it?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?