Tongue twisters are fun phrases that can be tricky ... Priscilla's perplexing puzzle pieces perfectly puzzled her playmates.

Can you roll up the edges of your tongue so that the tongue forms a sort of tube? If you can, you are a subject of interest to Researcher Alfred Henry Sturtevant of California Institute of ...

Tongue twisters and viral hits - not really a match ... What began as harmless fun turns into a global phenomenon: suddenly, people all over the world know Barbara and her rhubarb bar. Fans upload ...