How many bananas can you eat if your stomach is empty?

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 = ?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

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

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

what does the below math rebus puzzle mean?

People make me, save me, change me, raise me. What am I?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Wednesday, Steve and Pam go to a restaurant to eat lunch. After eating lunch, they pay the bill. But Steve and Pam do not pay the bill. So…who does?

What is the next number in this series?

4,12,84,3612....