THE KNOWLEDGE FEED

The first item bought by scanning its UPC code was a ten-pack of Wrigley's Juicy Fruit gum, purchased at an Ohio supermarket. It's now on display at the Smithsonian.

The first item bought by scanning its UPC code was a ten-pack of Wrigley's Juicy Fruit gum, purchased at an Ohio supermarket. It's now on display at the Smithsonian.

Masterpieces: A Quiz

Questions:15
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

Have you mastered the masters? To prove your art chops, select the correct artist for each masterpiece shown.

5 Questions: Storm Chasing

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

The top three areas of coupon distribution are household cleaning products, pet foods, and frozen foods.

The top three areas of coupon distribution are household cleaning products, pet foods, and frozen foods.

Brain Game: A Teeny Challenge

Sandy Wood

Flags of the World (The Striped Ones)

Questions:9
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

We've tested your knowledge of the world's strangest flags. Now let's see how you do with some of the striped ones.

Morning Cup of Links: Our Military Can Take Godzilla

Miss Cellania

5 Questions: It's Owl in the Game

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

The consistency of your ear wax is genetic.

The consistency of your ear wax is genetic.

Mac or PC?

Questions:10
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

Please read carefully before beginning: In this quiz, "PC" refers to any IBM-clone type machine/platform running Windows or its direct predecessors. We all know Macs are personal computers too, but for the purpose of the quiz, as it relates to the modern Mac/PC debate and all those great TV commercials, Mac = Apple and PC = IBM/Microsoft.

Morning Cup of Links: World's Best Father?

Miss Cellania

5 Questions: Trees III

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

One quarter of the bones in your body are in your feet.

One quarter of the bones in your body are in your feet.

The Pop Culture Spelling Bee

Questions:12
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

The Pop Culture Spelling Bee was one of the games we played at the inaugural Mental Floss Trivia Show. Now you can play along at home! Simply choose the proper spelling of each name. Then spend the rest of the day figuring out whether knowing the answers is a positive thing.

5 Questions: The End (Part I)

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

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