What is the next number in the series?

15 29 56 108 208 ?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What number when divided in half becomes zero?

What has many keys but can’t open a single lock?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

Rumel, A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note:

710 57735 34 5508 51 7718

Currently, there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?

When is the top of a mountain similar to a savings account?

I don't get anymore wetter, no matter how much rain falls on me.

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?