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?

Can you solve below mathematical equation?

2^1234 - 2^1233

If 21x = 79x, what is the value of x?

What has hands, but can’t clap?

What 5-letter word typed in all capital letters can be read the same upside down?

What does this rebus means ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?