Please answer these riddles!?

[dancemom31]

1.The more you take away, the more you leave behind. What am I?
2.I occur once in a second, twice in a week, and once in a year.What am I? 3.What has an eye but cannot see?

 

[axesenzon]

1. footprints
2. the letter 'e'
3. needle

 

[zarah]

1. hole
2. letter e
3. a needle

 

[thebombdiggidyduh.]

1. Footsteps
2. The letter "E"
3. A needle

 

[k3kelly]

1. steps
2. e
3. needle