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

When I asked a girl's name she told me her name is the date '07/09/2001'.

I thought for a few seconds and then I got her name. Do you?

What does a man do only once in his lifetime, but women do once a year after they are 29?

The answer I give is yes, but what I mean is no. What was the question?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

Three men in a cafe order a meal the total cost of which is $15. They each contribute $5. The waiter takes the money to the chef who recognises the three as friends and asks the waiter to return $5 to the men.

The waiter is not only poor at mathematics but dishonest and instead of going to the trouble of splitting the $5 between the three he simply gives them $1 each and pockets the remaining $2 for himself.

Now, each of the men effectively paid $4, the total paid is therefore $12. Add the $2 in the waiters pocket and this comes to $14. Where has the other $1 gone from the original $15?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

What is the last thing you take off before bed?