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.

The trivia king had a mixed bag of stuff today as he told us about oranges not originally being orange, how lots of nuts aren't actually nuts at all, how the microwave was created and the unthinkable amount of calories a blue whale gets in one mouthful of food.

Keep them coming Dave.

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