When fifth-grade teacher Ana Sanchez handed out the math pop quiz Tuesday before lunch and recess, none of the students were excited. No talking allowed, Sanchez reminded her students at Mount Rose ...

Lateral-thinking puzzles fall into the latter category. Among the trickiest riddles out there, these brain games will give your noggin a serious workout. That’s because they’re not as clear-cut as ...

Mathematics-focused artificial intelligence startup Axiom Quant Inc. stepped out from the shadows today to announce it has ...