It belongs to you, but other people use it more than you do. What is it?

There is a basket full of hats. Three are white and two are black. Three men, Tom, Tim, and Jim, each take a hat out of the basket and put it on their heads without seeing the hat they selected or the hats the other men selected. The men arrange themselves so Tom can see Tim and Jim’s hats, Tim can see Jim’s hat, and Jim can’t see anyone’s hat. Tom is asked what color his hat is and he says he doesn’t know. Tim is asked the same question, and he also doesn’t know. Finally, Jim is asked the question, and he does know. What colour is his hat?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

Doctor Alex and a bus driver John are both in love with the same woman named Olivia. The bus driver need to go for a long trip of 10 days, Before he left he gave Olivia 10 apples.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Who always enjoys poor health?