This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Replace the question mark with the correct number below.

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 = ?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

What does below pictogram mean?

What is red and smells like blue paint?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?