How many times can you subtract the number two from the number fifty?

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 name any English verb that becomes its past tense by simply rearranging the alphabets ?

I have an eye but still cannot see.

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 live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

During which month do people sleep the least?

How many times can you subtract the number 5 from 25?