Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

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?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What came first, the chicken or the egg?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS

Take away the whole and some still remain. What is it?