What always comes into a house through the keyhole?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

John, a 5-year-old boy, was really fond of the chocolates. He asked his Mother to give him some money to buy his favourite chocolates. His Mother gave him $45. He went to the shopkeeper and asked, "How much is one chocolate for?". The shopkeeper said $3 for one chocolate. Also, if you give me the wrappers of three chocolates, I will give you one for the exchange.
In total, how much chocolate could John eat?

You can see it everyday, But cannot touch it at will. What is it?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Kareena is older than Bipasha. Bipasha is younger than Karishma and younger than Katrina. Katrina is older than Kareena and Alonso, who are older than Karishma.If Alonso and Kareena are twins, who's oldest?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Find the next number in the following series:
6, 14, 26, 98, __?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?