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?

why number 8549176320 is one of a kind?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

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Can you find the company name in the pictogram below?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

What has hands, but can’t clap?

What is the Surname of Barbie Doll?