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?

How many triangles are there on the puzzle below?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

If an electric train is travelling south, then which way is the smoke going?

Can you find out the remainder when 3^300 is divided by 5?

A four-digit number (not beginning with 0) can be represented by ABCD. There is one number such that ABCD=A^B*C^D, where A^B means A raised to the B power. Can you find it?

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?