What does this rebus mean?

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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?

What is greater than gold but cannot be bought. it can never be sold and can earn if its sought. though it can be broken, it can still be fixed. for by birth it can't start nor by death it is ended.what am i?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

In the four images below, can you find the odd one out?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

The following "Brain Bat" means Slow Down.
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Using the same logic, can you tell us what does the following Brain Bat means ?
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John is the son of Jacob.
So,
Jacob is the_____of John's father?

Consider all the numbers between 1 and 1 million. Among all these numbers, there is something very special about the number 8 and the number 2202. What is it?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?