What does the below rebus riddle means?

Make a sentence consisting of three words that have the whole alphabet.

Replace the question mark with the correct number in the below-given picture?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

I have feet, but no legs. Which animal Am I?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

Prove that the below maths equation is true.

8 + 8 = 91