What always comes into a house through the keyhole?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

Why do you find that most of the buildings are deprived of the 13th floor?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Can you identify the Oscar-winning movie from the rebus below?

What has 88 keys?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?