What does the following BrainBat signifies?

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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?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

No matter how little or how much you use me, you change me every month. What am I?

I can be cracked, made, told, and played. What am I?

What has to be broken before you can use it?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?