If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

A car is crossing a 20 km-long bridge. The bridge can support at most 1500kg of weight over it. If somehow, the weight on the bridge becomes more than that, it will break.

Now, the weight of the car is exactly 1500kg. At the midway, a bird comes and sits on the roof of the car. This bird weighs exactly 200 grams.
Can you tell if the bridge breaks at this point or not?

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

AB * C = DE - F = GH / I

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Which alphabet is a part of our body?

Find the next number in the sequence

5 12 24 36 ?

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.