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

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?

Dwayne Johnson was running away with the loot from a heist in his car along with Vin Diesel. One tire was punctured and he dropped down to replace it. While changing the wheel, he dropped the four nuts that were holding the wheel and they fell into a drain. Vin Diesel gave him an idea using which they were able to drive till the rendezvous point.

What was the idea ?

What do you answer even though it never asks you questions?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What has lots of eyes, but can’t see?

Can you spot the man between the coffee bean in the picture below ?