Can you decipher the below rebus?

PBLUESAISNUERSES

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

What question can you never answer yes to?

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

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

10+10 and 11+11 can give you the same answer.

Explain how?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?