What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Why Aeroplane windows are round?

Solve the counting riddle by identifying the number of triangles in the given picture.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Luis Garavito killed Density x Volume.

Who is Luis Garavito ?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

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?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?