2, 3, 5, 9, 17, _ What is the next number in the sequence?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

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?

What number should come in place of the question mark below?

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

what's the probability of getting a king or a queen from a pack of 52 cards?