What does this below rebus puzzle mean?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

When it's bad luck to meet a black cat?

Identify the 10 differences between the two given pictures.

If an electric train is travelling south, then which way is the smoke going?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

Solve this riddle by finding the odd one out from the rest.

Manish has to secure 40% marks to pass his B.tech final exams.
He got just 40 marks and failed by 40-marks.

What is the maximum marks?

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?