I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Jenifer is learning to drive her car. She went down a one way lane and in the wrong direction. But she do not break any law.

How come ?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What is the riddle which can be asked all day with a different correct answer each time.

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Why Aeroplane windows are round?

My location can be determined by the below rebus.
So where am i ?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.

Solve below rebus puzzle?