A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

What is the Surname of Barbie Doll?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

The centre of the third figure is empty. What digit should fit inside?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

Name a key which is hardest to turn.

who is silent in the parliament?