Can you replace the question mark with the correct number in the below table sequence?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

Name a key which is hardest to turn.

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

What shoe company does this rebus represent?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

Can you replace the question mark with the correct number?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?