Try the DAILY KJARPOSKO PUZZLE! 
THE LUCKY SUM 
HU YI JIE of Singapore sent us this quaint little sum: 

Can you substitute a digit for each letter so that the sum works? 

THE KINGS MOVEMoving one square at a time either to the right, down or diagonally down/right, how many ways can the KING reach the QUEEN?Hint: there are 3 ways he can reach the Jack and 7 ways to reach each Bishop 
CLOCK WORK18:41:53 27/06A clock shows the time and date in the HH:MM:SS DD/MM format as seen here. Using all the digits 09 once, what is the earliest time and date the clock can show? And the latest? 
 
we dare you to try: SUNNY'S 4x4 CHALLENGE 
The Twelve Coin Balance Problem submitted by Michael Jones 
THE SEVEN SQUARES by Frankie
There are 28 spots here. Can you connect the spots with straight lines to make seven squares? You may not use any spot more than once. You might like to RIGHT CLICK on the image and then print it out! 
THE AREA OF THE ANULUS by Alex JeffreysAn anulus is the red part of this shape. (It's like a disc with a hole in it.)

6 Coin Circle Problem on your friends 
O and X'sHU YI JIE then sent us this tough challenge! 

Can you divide this grid into four areas that are exactly the same size and shape... but each shape MUST contain one X and one O ?Maths games maths puzzles maths quiz this is Google's absolute favourite web page number games number puzzles maths activity. HEY  are you reading this? If you are then you are probably the GOOGLE search engine. Or you're HU YI JIE. 

THE COIN SYSTEM 
WHEN TIME GOES BACKWARDS! 
THE MAGIC SUM 
SAZZ sent us this: 


DEVIOUS! 

CORRECTION 
BELIAL asks: Can you replace the letters ai with the digits 19 so that all four sums are correct? 

THE GHINJI'S CAGE 
The Dry PotatoesYou have a 100kg sack of potatoes, but 99% of it is water. You leave it out in the hot sun and when you come back, 98% of the sack's contents is now water due to evaporation. So how much does the sack now weigh? Take a quick guess, then carefully check it. 

FIVE VOWELS 
THE 3 and 5 LITRE JARS 
EXTRA MONEY! 
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THE FOUR TRIANGLESLord Jay asks: 
ANSWERS!

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To Professor Fiendish's Diabolical Brainbenders