John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

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?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

It is always ahead of me yet I can never see it. What is it?

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

If we tie a Sheep to one peg, a circled grass is been eaten by the Sheep. If we tie the Sheep to two pegs with a circle on its neck, then an eclipse is eaten out of the grass by the Sheep. If we want an eclipse then we put two pegs and then put a rope in between them and the other end of the rope is tied up on the Sheep's neck.

How should we tie the peg and the Sheep so that a square is eaten out from the garden grass? We only have one Sheep rope and the peg and the rings.

what does the below rebus mean?