Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

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?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What is the next number in this matchsticks series riddle?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

What has many keys but can’t open a single lock?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?