How can you place a standard pencil on the floor so that no one can jump over it?

Take away my first letter, then take away my second letter. Take away all of my letters, yet I'll still stay the same. What am I?

@Jessica212 and @charmingMemory51

Correct!

(Both postman and postbox are correct answers.)

What is the largest amount of money in coins you can have without being able to make exact change for a dollar?

@TrulyMadlyDeeply is correct, $1.19

A young man comes to the city from this home in the countryside to study at a prestigious university. He has no family in the city except for his sister, who is an artist and lives alone in a small flat. She tells him that she has a spare room in her flat he can stay in, so he moves in to his sister's flat. Every morning, he'd wake up and go to university. By the time he came back home, it was almost evening and he was usually quite tired, so he'd lock and chain the door, have something to eat and go straight to bed. His sister came back late at night and left early in the morning, so he didn't get to see her much. One morning, as he was getting ready for university, he realised something that horrified him so much, he ran out of the flat and never came back.

What is it?

The more you take the more you leave behind.

Footsteps is correct.

A house with two occupants, sometimes one, rarely three. Break the walls, eat the tennants, then throw away me. What am I?