I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

How can you take 2 from 5 and leave 4?

Count the number of balls in picture below:

Complete the series by replacing "?" with the correct number.

ST ND RD TH '?'

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 = ?

Can you solve below mathematical equation?

2^1234 - 2^1233

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Can you count the number of blocks in the picture below?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?