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

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

Which of the below owl is odd one out?