What is both possible and impossible at the same time?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

Which is heavier: a ton of bricks or a ton of feathers?

Can you fill the blank with the correct number?

6 30 870 756030 _____

I am white when I am dirty, and black when I am clean. What am I?

There are two guys standing face to face in a room. On a wall, there is a clock. One of those is a prophet. He tells the other guy that he will be stabbed in the back in five minutes.

Shocked to hear that, the other guy stares at the clock. Just after the five minutes, he is stabbed on the back. Can you tell what happened?

Can you start the fire using two pieces of wood?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?