You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

What happened when the wheel was invented?

Replace the question mark with the correct number in below Picture:

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

What is so fragile that saying its name breaks it?

The following alphametic has only one solution. Can you find it?
ENLIST + SILENT + LISTEN = ANAGRAM

PS: You may start the number from 0.

What is the word or phrase below?
R | E | A | D

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

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 number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?