I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?

Which digit occurred maximum times between the number 1 and 1000?

You need to move three matchsticks to form three squares. Can you do it?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

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?

During which month do people sleep the least?

How can one talk without saying a single word?

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

What always comes into a house through the keyhole?