If Bihan is 10, Anirudha is 20, and Kim and Seal are both 5, but Rikold is 10, how much is Kenniger by the same trend?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

What goes up but never comes down?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

It belongs to you, but other people use it more than you do. What is it?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

What has no start, end, or centre?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?