Using eight eights and addition only, can you make 1000?

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?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

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

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Which tank will fill first?

Count the number of balls in picture below:

what does this picture(rebus) riddle means ?

What is the next number in this matchsticks series riddle?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?