As a non-technological society with no written language at the time, the Mongols didn't really "invent" anything per se, but they did establish an empire that allowed technology to flourish, religion to exist, and education to prosper. They brought East and West together and laid the foundation for much of Western civilization as we now know it.
They played standard sports.
gymnastics
baby eating
The first people to invent sports probably goes back to the cavemen. They had forms of entertainment such as wrestling.
soccer and rugby
softball, hockey, loop the loop
It is unknown who exactly invented sports as different forms of athletic competitions have evolved over time in various cultures independently. Ancient civilizations like the Romans, Greeks, and Egyptians all had their own sports and games that contributed to the development of modern sports.
yes many like trenchball and frets
the rubik's cube, the ball point pen
Yes there are Mongols , people living in Mongolia are mongols.
they invented foosball