What number comes next in the series?

5 15 5 18 5 24 14 20 _

How many letters are in the alphabet?

10+10 and 11+11 can give you the same answer.

Explain how?

You have a thousand Re. 1 coins with you. You have ten bags with you and you can put any number of coins in each of the bags. The condition is that if someone asks you for any amount between 1 and 1000, you must be able to give that amount by just giving the bag (you are not allowed to open the bag and give coins).

How will you do it?

What number when divided in half becomes zero?

Can you find the 09 errors in the picture below?

Peter wakes up daily to pick up his cycle and crosses the border between Spain and France daily with a bag on his shoulder. He is investigated daily by the officials but they don't find anything suspicious.

If we tell you that he is smuggling something what would it be?

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

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Count the number of triangles in the below picture?