A Japanese ship is sailing in the Indian Ocean. The captain of the ship feels tired and decides to take shower to be rejuvenated. He goes to take the shower after keeping his diamond-studded Rolex watch and gold chain on the table.
When he comes back after 15 minutes, he finds them missing. There are 4 crew members on the ship and he calls them one by one to ask them what they were doing in that duration.

Following are the answers:
1. Crew 'A' who is the cook replies that he was cooking mutton for the crew members.
2. Crew 'B' who is a housekeeper tells that he was sleeping in his room.
3. Crew 'C' who is the engineer says that he was checking on the generator.
4. Crew 'D' who is another housekeeper says that he was correcting the hoisted flag that was put upside down.

It took only a couple of seconds for the captain to find the thief. Can you find the thief too?

When it is alive we sing, when it is dead we clap our hands. What is it?

You have 21 jars with you. Out of them, 7 are filled with water, 7 are half-full with water and 7 are empty. How will you distribute the jars among three people such that each one of them gets an equal number of jars and an equal amount of water?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

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

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

A sundial has the fewest moving parts of any timepiece. Which has the most?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?