what does the below rebus means?

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

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What is the next number in the series?

15 29 56 108 208 ?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

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?

I know a number which is spelt in alphabetical order.
Do you?