What is the fastest way to double your money?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

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?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Two girls were born to the same mother, on the same day, at the same time, in the same month and year and yet they're not twins. How can this be ?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

In the given picture, in how many ways can you read the word "Tiger"?

A man escapes from jail using help from his girlfriend. The investigators suspect four girls of being the man's girlfriend.

Out of those four girls, one is his girlfriend who is lying. Two of the girls are completely innocent and are speaking the truth. One of the girls is the man's sister who is helping the girlfriend lie. Following are the statements from all four of them:

Ariana: "Myrna is his girlfriend."
Jane: "Angelina is lying."
Angelina: "Ariana is lying."
Myrna: "Jane is not his sister."

Can you find out who is the man's sister among them?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Find the value of "?" in the ball picture Riddle below: