What you cannot hold but it is yours?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Can you solve below mathematical equation?

2^1234 - 2^1233

Find out the missing number in the picture attached:

Can you find out the number that should replace the question mark with a valid reason?

Can you find out the remainder when 3^300 is divided by 5?

Identify the 10 differences between the two given pictures.

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

Which famous Hollywood movie name is hidden in the below rebus?