What is the next shape from answers A, B, C, and D figure?

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 = ?

You can hear me, but you can't touch or see me.

What am I?

If an electric train is travelling south, then which way is the smoke going?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

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

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?