You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

why number 8549176320 is one of a kind?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

What has 13 hearts but no other organs?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

In which direction should the missing arrow point?

Why do you find that most of the buildings are deprived of the 13th floor?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

If six children and two dogs were under an umbrella, how come none of them got wet?

Can you find out the remainder when 3^300 is divided by 5?