What is both possible and impossible at the same time?

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

For an extra income, John decided to work at a Hotel for one hour daily. The manager offers him that they will pay him $11 after every 11 days.
However, John offered a different proposition to the manager. The offers stand as:
He will be paid just a penny on his first day.
Two pence will be paid on the second day,
Four pence will be paid on the third day.
And so on till the 11th day.

Should the Hotel manager accept his offer?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

I have eight fingers and two thumbs but I do not live. What Am I?

What is the word or phrase below?
R | E | A | D

What is 3/7 chicken, 2/3 cat and 2/4 goat?

Using Only Five 5's and any mathematical operator make sum as 37

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?