Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

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?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Can you count the number of squares in the figure below?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

You can hear me, but you can't touch or see me.

What am I?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Can you decipher the below rebus?

PBLUESAISNUERSES