Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

What begins with T, ends with T, and has T in it?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

Complete the table series riddle by finding the number that can replace "??".

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

How many letters are in the alphabet?