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

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Can you quickly find which two matchstick figures are identical?

If an electric train is travelling south, then which way is the smoke going?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Can you find any error in the following sentence?

A taxi was standing outside a fort at night. A man came out of the fort, opened the gate and hit the taxi driver killing him instantly. He took all the money out of the meter and started running till he was caught by a local sheriff.

If you say my name, I will no longer exist. What am I?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

I taste better than I can smell. Who am I?