The teaser in question comes from X (formerly Twitter) user Ganesh UOR, who is known for regularly sharing thought-provoking brain teasers. The puzzle reads: "Brain test: Divide 90 by half and then ...

There are eight doors in front of you labeled A through H. Behind one of the doors is a prize. A guard is aware of the ...

Test your problem-solving skills with the classic light switch logic puzzle! Can you figure out which switch controls each ...