Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

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

How many triangles are there on the puzzle below?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?