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A8R854 House Mouse Mus musculus scurrying across garden lawn Kent UK

Can a trapped mouse really find its way back from a mile away?

Our readers point out that removing a mouse from your house just leaves space from another mouse - and share their own humane mousetrap inventions

2HCTCGW grumpy cat sits on a newspaper stack

This week’s new questions

ROTHBURY, NEWCASTLE UPON TYNE, ENGLAND, UK - JULY 06, 2019: Two cyclists peddling hard up a steep hill at the cyclone race event from Newcastle to Northumberland.; Shutterstock ID 1539510248; purchase_order: -; job: -; client: -; other: -

What is the best option to save energy when cycling on hilly roads?

2F959A7 Cabazon, CA, USA: June 18th, 2010: A 65-foot-tall Tyrannosaurus rex known as Mr. Rex is part of a roadside attraction that stands near the freeway in

Where is 180 million years’ worth of dinosaur poo?

AY65GM 10 97 Australia Queensland Beauty Spot sign Photo c Simon Grosset

This week’s new questions

2CG262A Old fashioned street clock with Roman numerals without arrows on blue slightly cloudy sky background. Real view of street clock in city. Stopped time

What would happen if time stopped?

J773YF Kitchenware on shelves with stainless steel sink in 17th century Kintyre stone cottage

What happens to the stains in my sink when I clean it with bleach?

2H6020J Few pedestrians on the rather busy street in metaverse conceptual reality

This week’s new questions

2RXK2EN Catford Local Area Photography

What is the largest size an animal can be?

2DBWHRA A Atom with electrons and protons moving in the microcosmos.

Is there the same number of electrons as protons in the universe?

This isn’t true for Earth, nor is it the case for the universe, explains one reader

Will we ever be able to tell if an AI gains consciousness? Part 2

This week’s new questions

How do I know if what I see is actually there?

Could aliens work out if a human or an ape built a tomb? Part 2