If eleven plus two equals one, what does nine plus five equal?
Can you replace the X (both small and big x) with the numbers between 1 to 19 such that all the rows of 3 numbers between X (big x) sum to 23?
If a wheel has 54 spokes, how many spaces are there between the spokes?
What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?
A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result. Can you find how bias is the floor in this case?
How much will a 38° angle measure when looked at under a microscope that magnifies ten times?
Complete the following series. It.s very logical: 1, 4, 5, 6, 7, 9, 11, __?
Can you name an animal whose killing cannot be performed without spilling your own blood?
John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not. Is a married person looking at an unmarried person ?
Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
How many triangles are there in the picture below?
The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.
