Olympic Games Fact Challenge

In 7/8 OD we are learning about the Olympic Games. Our teacher Mrs O'Donnell gave us a task that task was we had to complete the question that she had given us.
Here are the questions:
Who designed the Olympic Rings? Baron Pierre Coubertin 
When were the Olympic Rings designed? 1912 
Why are there 5 rings? Because the rings represent 5 world continents 
What is the meaning behind the rings being interlocked? It represents the 5 continents coming together as one
What is special about the colours used for the Olympic rings? It means that, those that appear on at least one of all the national flags of the world at the present time united by Olympism  

Here is a photo of a Olympic flag I had to design