How many times do a clock's hands overlap in a day ?

What is the Surname of Barbie Doll?

What is always in front of you but can’t be seen?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

What is the next number in the series?

15 29 56 108 208 ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

Buy me, smell me or deliver me, I do not change.

Who am I?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?