A viral number sequence puzzle challenges players to find the next number in “2, 6, 12, 20, 30, ?”. Test your analytical skills and see if you can solve it. The key here is to remain focused and keep ...

UNSW Sydney provides funding as a member of The Conversation AU. I remember, as a child, being fascinated by how just seven simple wooden triangles and other shapes could offer endless entertainment.

Get started solving the classic number puzzle with tips from some of the best solvers in the world. By Isaac Aronow Everybody can solve a hard Sudoku. Maybe not right now, maybe not without some ...