What has one letter and starts with an E?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

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

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?

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

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?