What numbers should go on the bottom line? 3 6 9 15 8 2 10 12 11 8 19 27 19 10 29 39 ? ? ? ?
A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?
Find the next number in the series 12, 20, 40, 72, 116, 172 ?
What is harder to catch the faster you run?
It's a test that will check your IQ. Suppose you have one 11 minute hourglass and one 13 minute hourglass. Can you measure exactly fifteen minutes using them ?
I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?
What is the fastest way to double your money?
Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L. Can you find an "ology" that begins with a P?
On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?
If, 29 - 1 = 30 9 - 1 = 10 14 - 1 = 15 Based on similar logic, Can you prove that the below algebraic equation is true? 11 - 1 = 10 ?
I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.
