Portal:Mathematics/Did_you_know/22: ... that there are 115,200 solutions to the ménage problem of
permuting six female-male couples at a twelve-person table so that men and women alternate and are seated away from their partners?
Portal:Mathematics/Did_you_know/30: ...that people are significantly slower to identify the
parity of zero than other whole numbers, regardless of age, language spoken, or whether the symbol or word for zero is used?
Portal:Mathematics/Did_you_know/22: ... that there are 115,200 solutions to the ménage problem of
permuting six female-male couples at a twelve-person table so that men and women alternate and are seated away from their partners?
Portal:Mathematics/Did_you_know/30: ...that people are significantly slower to identify the
parity of zero than other whole numbers, regardless of age, language spoken, or whether the symbol or word for zero is used?