What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

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?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

What Deficiency does the below rebus represent?

VIT_MIN

Which is Odd One Out and why?

4377

3954

9862

8454

9831

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

I have an apple tree , number of apple in this tree get doubles every week.

On 30th week , the tree gets completely filled with apples :-)



Can you tell me , on what week does my tree is half covered with apples ?

In the given picture, in how many ways can you read the word "Tiger"?