ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

Rearrange the letters in "new door" to make one word.

Which number should replace the question mark?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What is so fragile that saying its name breaks it?

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

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

Before Mount Everest was discovered, what was the highest mountain in the world?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?