What does below Rebus say?

XLR8

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Find the missing letter in the last circle logically in the given below picture.

What's the only room from which no one can enter or leave

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

What goes through cities and fields, but never moves?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

Replace the question mark with the correct number.

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

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?