Find the next number in the sequence

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

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

How many letters are in the alphabet?

Can you count the number of triangles in the picture below?

Tell me the Hindi name of a Vegetable which if we remove 1st word will become a precious Stone and by removing the last word it will become a sweet eatable.

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”