A man dies of old age on his 25 birthday. How is this possible?

The captain of a ship is telling you an interesting story and then poses a question. He says, “I have travelled the oceans far and wide. One time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly. Can you tell me how that was possible?”

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

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

Can you name four days which start with the letter 'T'?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

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?

I cry without having a voice.
I fly without having wings.
I bite without having teeth.
I whisper without a mouth.

Who am I?

I sleep during the day and fly at night, but I have no feathers to aid my flight. What am I?