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

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

How many times in a given day, minutes and hour clock comes in a straight line ?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

4 fathers, 2 grand-fathers and 4 sons went to watch the movie.What is the minimum number of tickets they need to buy ?

Find the next number in the series below

21 32 54 87 131 ?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?