One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

You stand in front of two doors. A guard stands next to each door. You know the following things: one path leads to paradise, the other leads to death. You cannot distinguish between the two doors. You also know that one of the two guards always tells the truth and the other always lies. You have permission to ask one guard one question to discover which door leads to paradise. What one question would you ask to guarantee you enter the door to paradise?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

what does this below rebus represent identXQQQQQME

If,

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

Then

4 / 5 = ?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

People put me on the table and cut me but do not eat me. What am I?

I am white when I am dirty, and black when I am clean. What am I?