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

Who am I?

Which famous Hollywood movie name is hidden in the below rebus?

A pack of cards has 40 cards. You are blindfolded. Out of 40, 25 cards are facing down while 15 are facing up. You have been asked to divide this pack of cards into two decks - so that each deck contains an equal number of face-up cards. Remember, you are blindfolded.

How will you do it?

What has to be broken before you can use it?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

Which tank will fill first?

Can you find the thief by just looking at the picture below?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

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