The S1 heart sound is two of your heart valves closing. It's the first sound doctors can hear with a stethoscope. Learn what ...

There are 13 countries that sit on Earth's equator. Can you get them all in 5 minutes? If so, how fast can you do it?

I’M A Celebrity…Get Me Out Of Here! fans have blasted hosts Ant and Dec following Tulisa’s tricky Bushtucker Trial. Tulisa, ...

This is your chance to meet the What If team! Which challenge should Peter do next? The best comment will have a Zoom meeting ...