What has 88 keys?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

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

Five teams were competing in cricket where they faced each other exactly once. After the tournament, the following is the point table.

DareDevils 6
SuperKings 5
Royals 4
Sunrisers 2
Riders ?

How many points did Riders end up with?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

Prove that the below maths equation is true.

8 + 8 = 91

What is next number in the pattern below:

131 517 192 123 ?

A sea diver is a real show-off. He showed everyone that he can hold his breath underwater for 15 minutes.

I went to the diver and told him that I can be underwater for double the time i.e 30 minutes.
He responded that he will give me 100$ if I would be able to do it. I won 100$.

What did I do?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

You need to arrange three 7 and mathematical symbols to form number 1?