What happened when the wheel was invented?

John was piloting a plane behind a car but was never able to overtake it. Why?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

How many letters are in the alphabet?

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

John is a strange liar.

He lies on six days of the week, but on the seventh day, he always tells the truth.

He made the following statements on three successive days:

Day 1: "I lie on Monday and Tuesday."
Day 2: "Today, it"s Thursday, Saturday, or Sunday."
Day 3: "I lie on Wednesday and Friday."

On which day does John tell the truth?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?