I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

Why are all black people so quick ?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

Which alphabet letter is a question?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

With the help clues provided in the image, can you find the 5 digit key?

Which is faster, Heat or Cold ? Explain.

What does the below mathematical rebus mean?

John and his team plan to rob a safe. They got just one chance to break the code else the local police will be informed. Below are clues:
A) Exactly one number is perfectly placed: 9 8 1
B) Everything is incorrect: 9 2 4
C) Two numbers are part of the code of the safe but are wrongly placed: 0 9 3
D) One number is part of the code of the safe but is wrongly placed: 1 4 7
E) One number is part of the code of the safe but is wrongly placed: 7 8 3