Singing tree:
There is a structure in England that looks like a tree and it sings. It is made up of steel pipes of different lengths. When air crosses through these pipes, it creates sounds or SINGS.
Link: Singing ringing tree
Why is there so much air in chips packets?
All the extra air in chips, that most people complain about, is actually nitrogen. It keeps the chips fresh and also provides a cushion to prevent it from breaking.
What does Netherlands gift Canada every year?
Netherlands gifts Canada 20 thousand tulips every year as a thank you for their help in world war 2.