Here’s one that demonstrates your brain power!
In a contest, people were shown a photograph of six mothers and their six children, arranged randomly in a group.  Contestants strangers to the photographed group were asked to link the six mother and child pairs.  Forty people responded, and each had paired all of the mothers and children correctly!

Imagine that!!  That’s the power of your brain, the ability to distinguish each adult form and estimate, using finer discrimination, which child’s features / head-shape / expression best fitted with which adult.