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 shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

How many sides does a circle have?

What is the fastest way to double your money?

What do you see in the image below

Can you solve the below algebraic mathematical equation?

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

A man dies of old age on his 25 birthday. How is this possible?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?