MATHS PUZZLES FOR KIDS

1. Turn the fish
   
   Move three sticks and make the fish to swim in the opposite direction. You can see the solution and play an interactive version of this puzzle at Puzzles.com (and many others too!).
   
   
2. Pigs need their pens
   
   Farmer Black raises pigs and was raising them in modular pens, He currently has 6 pigs in the following arrangement:

   +---+  +---+  +---+  +---+  +---+  +---+
   |   |  |   |  |   |  |   |  |   |  |   |
   +---+  +---+  +---+  +---+  +---+  +---+
   

   He needed some walls for another project so he rearranged the pins like this:

   +---+---+---+---+---+---+
   |   |   |   |   |   |   |
   +---+---+---+---+---+---+  
   
   

   He then found out he need 7 more wall pieces to finish his project. How did he rearrange the pens so that there was only 1 pig per pen?
   
   See the solution.


3. Coin triangle

   Move only three coins and turn the triangle upside down. Click here for the answer, but not before you've thought about it!

4. Dots in a square
   This is one of my favorites! It is a simple puzzle, but illustrates beautifully the idea of "thinking outside the box."
   
   Join all the dots using four straight lines and without lifting your pencil.
   
   Click here for the answer, but think about it first!
5. Pentagon & star 
   
   How many triangles are there?
   
   See a hint and the solution at Cool Math 4 Kids site.