If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

There are three houses in a straight row. One is red, one is blue, and one is white. The red house is left of the middle. The blue house is right of the middle. Where's the white house?

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

On 26-01-2022, Juli was murdered at her house in a city in India in the afternoon. There were three suspects in the murder and the following are the statements that were given by them:

John: I visited my village that day.
Jacob: I was out to deposit my house tax in the municipality office at that time.
Jonny: I was at a friend's place having lunch at that time.

Can you find out who is the murderer?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Prove that twice of ten is the same as twice of eleven.

What kind of band never plays music?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?