I’m tall when I’m young, and I’m short when I’m old. What am I?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What is at the end of a rainbow?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

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?

I know a nine-letter word having only one vowel.
Do you ?