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?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

Can you guess the name of the month by looking the below rebus ?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

Count the squares in the matchstick puzzle below?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

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

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?