What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

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?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

Two natural numbers have a sum of less than 100 and are greater than one.

John knows the product of the numbers and Jacob knows the sum of numbers.

The following conversation takes place between them:
John: 'I am not aware of those numbers.'
Jacob: 'I knew you wouldn't be. I am not aware myself.'
John: 'Now I know them!'
Jacob: 'Now I know them, too!'

What are the two numbers?

Can you write down eight eights so that they add up to one thousand?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

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?

It is always ahead of me yet I can never see it. What is it?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?