Which is heavier: a ton of bricks or a ton of feathers?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

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

why?

Can you count the number of triangles in the given figure?

If 21x = 79x, what is the value of x?

In order to complete the racing competition, the Mexico racetrack has to submit its top and the most famous three horses to win the competition. Due to an electrical storm, all the records are cleared and no one knows which horse holds the record. They all look identical and it becomes even more difficult to differentiate the horses. There are 25 horses in the Mexico racetrack. But there can be only five horses at a time on the track. What will the least number of races that can be conducted to find out the three fastest horses?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Can you replace the question mark with the correct letter?

6 + 6 + 6 = N
7 + 7 + 7 = E
8 + 8 + 8 = R
0 + 0 + 0 = ?