Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Can you count the number of matches in the picture below ?

Our product and our sum always give the same answer. Who are we?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

Which city is three-fifths chick two third cat and 50% goat?

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

What's the best place to go shopping in the ocean?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.