You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Three cars are driving on a track that forms a perfect circle and is wide enough that multiple cars can pass anytime. The car that is leading in the race right now is driving at 55 MPH and the car that is trailing at the last is going at 45 MPH. The car that is in the middle is somewhere between these two speeds.
Right now, you can assume that there is a distance of x miles between the leading car and the middle car and x miles between the middle car and the last car and also, x is not equal to 0 or 1.
The cars maintain their speed till the leading car catches up with the last car and then every car stops. In this scenario, do you think of any point when the distance between any two pairs will again be x miles i.e. the pairs will be x distance apart at the same time ?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

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

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.

How will he do it?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Why did Buffon take the goal with him after every Juventus match?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135