Which is the smallest number that you can write using all the vowels exactly once?

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?

Can you decode the below cypher?

896983327332676578

A boy purchased a book from a bookkeeper and gave him $100.
The cost of the book is $50 but the bookkeeper has no change, so he gets the change from the next shop and returns the boy his $50.

After some time the next shopkeeper came with the $100 note and told the bookkeeper that the note was a fraud, so he took the money back.

How much loss did the bookkeeper face?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Count the Triangle in the figure given below:

What word begins and ends with an E, but has only one letter?

Different lights make me strange by changing me into different sizes. What am I?

What Time Should the last watch show in the below figure?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?