We all have that one friend who just loves to drop random facts into conversations, just to prove they know stuff. For Dermot, Dave is that friend!

If you’ve ever wondered why airports are laid out the way they are, what you can do at the speed of sound, or what colour eyes you’re best off having, then Dave’s World is the place for you!

Dave had some pretty amazing bits of trivia for us today as he educated us on why movies trailers are called 'trailers', how Scots have hundreds of words for 'snow', why female octopuses make super mothers and blew us away with a fact about 'the Windy City'.

It was a logophile's dream too as he revealed the worlds longest word. It would take you 3.5hrs to say it in full - that's like saying supercalifragilisticexpialidocious 5,000 times. Who in the name of God gave it such a name?? Ridiculous. 

You can listen to the fun in full by pressing play in the image above the headline at the top of the page.