When it's bad luck to meet a black cat?

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?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

Solve the rebus riddle in the picture below.

My location can be determined by the below rebus.
So where am i ?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

If an electric train is travelling south, then which way is the smoke going?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?