In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

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

I know a number which is spelt in alphabetical order.
Do you?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

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?

By what process could you make a 'Tea-Table' into food?

What can you serve, but never eat?

Which is Odd One Out and why?

4377

3954

9862

8454

9831