This brainteaser challenges readers to identify a missing value in a math problem under a four-second time constraint.

12.This teacher proved that a good teacher never forgets their favorite students. The text reads (with minor grammar edits): ...

Scientists have discovered a way to create black holes without the mysterious singularities where physics breaks down. By ...

Story continues below this ad Now, let’s solve another math question with the help of ChatGPT and DeepSeek: The question is: ...

Application to everyday problems: When you encounter a solution that works really well, reverse-engineer it. For example, if ...

Artificial intelligence has long been trying to mimic human-like logical reasoning. While it has made massive progress in ...

The company, the operator of China’s most popular search engine, announced the plan today. Reuters reported that the ...

Asking yourself structured questions can help you see a problem differently and break free from worry. When we're ruminating ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...

Solving problems in Euclidean geometry is one of four topics covered by IMO problems — the others cover the branches of number theory, algebra and combinatorics. Geometry problems demand ...

Knowing what to do if you’re prone to dips in your blood sugar can help keep you safe. You may try fast-acting juice or glucose, or adjust your insulin dose to help quickly raise your blood ...

Geometry’s “moving sofa problem” asks for the largest shape that can turn a right angle in a narrow corridor ... look strange in a living room. Solving the moving sofa problem requires ...