I make two people out of one. What 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?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

Can you find the six hidden animals in the picture below?

What building has the most stories?

How many words can a pen with half refill write?

Can you place six X (crosses) in below board without making three in a row in any way ?

You need to move three matchsticks to form three squares. Can you do it?

What two things can you never eat for breakfast?