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Kid with jet pack pretend to be superhero. Child playing in summer. Kid having fun outdoors. Child pilot against summer sky background. Success, leader and winner concept. Imagination, freedom concept; Shutterstock ID 450428614; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Could any of the photons that were around me when I played outside as a child decades ago still exist? And why is this snail (pictured) carrying an extra shell on its back?

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Portrait of white cat with crown on head sitting on bed, Namibia.

What has been the most successful animal ever?

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person aged group doing water aerobics in a swimming pool during a spa treatment; Shutterstock ID 167286806; purchase_order: -; job: -; client: -; other: -

In water sports, should fingers be pressed together to increase drag?

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B70G62 Suriname, Brownsweg, Brownsberg National Park. Woman looking at Tarantula , Avicularia Metallica.

This week鈥檚 new questions

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2F5E18C Hand Knuckle Finger Joint Crack. Fingers Snap

Why do our knuckles make a popping sound when cracked?

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mist, rain

How fast would you have to travel to be able to run on water?

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CX3N1D three 3 old men friends talking arguing discuss

This week鈥檚 new questions

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Large group of people on the move, some shopping, some holding hands, others just walking along.

What is the age/location/appearance of the world鈥檚 average person?

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illustrating the accelerating expansion of the universe

How can stars be 30 billion light years away?

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Milk coffee is a combination of equal parts espresso, steamed milk and milk froth.

This week鈥檚 new questions

Does a latte cool faster than a cappuccino? And does our body have 鈥済ood鈥� viruses, like it has 鈥済ood鈥� bacteria?

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Do drinks really taste different from cans or plastic/glass bottles?

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Are there limitless permutations of QR codes, or are they recycled?

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Why is pain so painful? (continued)

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This week鈥檚 new questions: Loose screws and brain overload

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