what's the probability of getting a king or a queen from a pack of 52 cards?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

What word begins and ends with an E, but has only one letter?

What is the word or phrase?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

I know a nine-letter word having only one vowel.
Do you ?

Can you find the key in the picture below?

In a Society, there are over 100 flats.

Flat 1 is named the first flat.
Flat 2 is named the second flat.
Flat 3 is named the third flat. And So On.....

A visitor decides to walk through all the flats, and he finds all the flats except flat 62.
Anmol later founds that the locals of the town have given it another name.

What is the name of the Flat?