I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

Buy me, smell me or deliver me, I do not change.

Who am I?

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 look at you, you look at me, I raise my right, you raise your left. What am I?

Can you decipher the two rows to find the hidden word?

In a concert, Christina is performing a dance show with her group.
At 10:00, she and her crew were dancing in an absolutely straight line. At that time Christina was standing in 4th position from both the front and back end of the row.

What was the size of her crew?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

What demands an answer, but asks no questions

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?