Now that virtual learning is in full-swing for the foreseeable future, we've been using all the online resources [1] and homeschooling tips [2] we can get. On April 13, Burger King decided to jump on the educational train by offering free Whoppers [3] to students 13 and older who can answer a question on topics like literature, maths, chemistry, and biology correctly.

Now through April 20, Burger King will post a question per day to its Facebook, Instagram, or Twitter account. All students have to do is set up a free account on the Burger King app — with parental supervision, of course! — and try their best to answer the problem. Each day they get it right, they'll earn a free Whopper, which are limited to one per person each day.

And FYI parents: judging by the question Burger King posted on April 13, your kids are definitely going to need to put their thinking caps on.

day 1 of student offers: Maths.

enter the answer on the BK app as a promo code for a $0 Whopper with any purchase pic.twitter.com/cBElhzaxlG [4]

— Burger King (@BurgerKing) April 13, 2020 [5]

"There's a tremendous impact on children [6], as a result of all the school closures," Jose Cil, CEO of Burger King's parent company Restaurant Brands International, told Business Insider last month. "It's one of the hardest hit groups of Americans, because they rely so significantly on school for lunch."