How can you make number one disappear by adding something to it?

Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

Can you find out which number multiplied by itself will give the output as 12345678987654321?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

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

why?

What can go up a chimney down, but can’t go down a chimney up?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Thirty friends were on a hiking trip when they decided to enjoy the bonfire. They assembled for it and agreed to play a game. For that, they divided themselves into five teams with seven members each, forming five rows.

How did they manage to achieve this formation?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98