If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Find the smallest sentence with all the English alphabet.

When it's bad luck to meet a black cat?

It is raining today at 11:59 am. What is the probability of sunny weather after 72 hours?

What has one letter and starts with an E?

What occurs twice in a week, once in a year but never in a day?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

There is a place where if I stand up straight, I will still be considered sideways.

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?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?