Neurological experts suggest that brain-teasing mental challenges—such as crosswords, illusions, and sudokus—are beneficial for your mind.

Regular mental exercise can provide cognitive benefits in the short, medium, and long term and may even reduce your risk of developing neurodegenerative diseases like Alzheimer’s and dementia.

One interesting brainteaser shared by Capital on Tap challenges you to spot the lost banknote in between all the reciepts.

The banknote is hidden somewhere between…