One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

The more it dries, the wetter it becomes. Can you tell what it is?

How many times can you subtract the number 5 from 25?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?