Which number should replace the question mark?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I can write cow in 13 letters.

Can You?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

Why Aeroplane windows are round?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

If your uncle’s sister is not your aunt, what relation is she to you?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.