If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

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

I am green and found in the forest and have needles instead of leaves. What am I?
Hint 1: It can be used for Christmas decorations.
Hint 2: I have a strong, scent that is used in air fresheners.

During which month do people sleep the least?

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

What Adam and Eve do not have but the rest of the people have?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

Replace the question mark with the correct number.

There was a strange boy who was born before his father. How can this be possible?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?