John Cena challenges a 5th grader to a push-up contest! Plus he learns to floss and do a proper pageant walk thanks to the talented students of Are You Smarter Than A Fifth Grader! Who do you think had the best moves? Let us know in the comments below! Catch more Are You Smarter Than A 5th Grader on Nick! ►► Subscribe for More: at.nick.com/Subscribe ►► Watch More from Nick: at.nick.com/NewNickVideos ►► SpongeBob on YouTube: at.nick.com/SpongeBobOfficial ►► NickRewind on YouTube: at.nick.com/NickRewind ►► All That on YouTube: at.nick.com/AllThat ►► What’s On TV? : at.nick.com/TVSchedule Catch More on Nick! #JohnCena #AreYouSmarter #5thGrader #Nick GET MORE NICKELODEON: Like Nick: at.nick.com/Facebook Follow Nick: at.nick.com/Twitter Nick Instagram: at.nick.com/NickIG Nick Snapchat: at.nick.com/NickSnapchat Like SpongeBob: at.nick.com/SpongeBobFacebook Follow SpongeBob: at.nick....