You are driving down the road in your car on a wild, stormy night, when you pass by a bus stop and you see three people waiting for the bus

An old lady looks as if she is about to die.
An old friend who once saved your life.
The perfect partner you have been dreaming about.
Knowing that there can only be one passenger in your car, whom would you choose?

I am the fastest animal but cannot climb the tree. What am I?

You need to move three matchsticks to form three squares. Can you do it?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

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

There were two grandmothers and their two granddaughters.
There were two husbands and their two wives.
There were two fathers and their two daughters.
There were two mothers and their two sons.
There were two maidens and their two mothers.
There were two sisters and their two brothers.
Yet there are only six, who are buried here,
All are born legitimate and relationships clear.
How can this happen?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

Our product and our sum always give the same answer. Who are we?

Using Only Five 5's and any mathematical operator make sum as 37