What is the below Rebus indicate?

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

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

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

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 ?

How many Watermelons are there in the below picture?

My location can be determined by the below rebus.
So where am i ?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

There are 3 apples in the basket and you take away 2. How many apples do you have now?