No one wants to have it, but if one got it, he does not want to lose it. What is It?

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

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

Spot the cat in the picture below

What does an Island and the letter T have in common?

Can you count the number of quadrilaterals in the picture below?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

Find the missing letter in the last circle logically in the given below picture.