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

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

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

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

If you say my name, I will no longer exist. What am I?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.