A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

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

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

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

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

I cannot talk, but I always reply when spoken to. What am I?

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

I am first found in caves, now prolific online; I am a depiction, a drawing, a symbol, or sign. I will convey whichever mood you could wish; or for that matter, a fist, flask, or fish. What am I?