On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

Count the squares in the matchstick puzzle below?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

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

The more you take me, the more you leave me behind.
Who Am I?

our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.

Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

I have no life, but I can die. What am I?

The cream is heavier than Milk. True or False?

Find the next number in the sequence

5 12 24 36 ?