There is something which you can be arrested for attempting but not for successfully completing.

A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

Can you name some countries which do not have the alphabet 'A' in them?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Where do you go to learn how to make ice cream?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?