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?

What's the only room from which no one can enter or leave

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

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

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

An octopus has 8 legs. A hippogriff has 6 legs and 2 pairs of wings. A sphinx has 6 legs and one pair of wings. Now we have all 3 kinds and a total of 18 insects in a cage. We have a total of 118 legs and 20 pairs of wings. How many insects do we have of each kind?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?