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

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Which country gets ill every time?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

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

How could a baby fall out of a twenty-story building onto the ground and live?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Spot 5 differences in two Christmas tree below:

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?