What has many keys but can’t open a single lock?

What seven-letter word has hundreds of letters in it?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

Which is the smallest number that you can write using all the vowels exactly once?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

What makes this number unique: 8,549,176,320?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

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

What came first, the chicken or the egg?