If eleven plus two equals one, what does nine plus five equal?

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?

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

Who are the happiest people in IPL match?

Move four matchsticks to the below square to form three squares?

What has no start, end, or centre?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

I’m tall when I’m young, and I’m short when I’m old. What am I?

What does below chemistry rebus means?

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