Do You Know that there are 6 unsolved mathematics problems whose solutions will earn you one million US dollars each?

The Millennium Prize Problems are seven problems in mathematics that were stated by the Clay Mathematics Institute in 2000. Currently, six of the problems remain unsolved. A correct solution to each problem results in a US$1,000,000 prize (sometimes called a Millennium Prize) being awarded by the institute. Only the Poincaré conjecture has been solved, but the solver, Grigori Perelman, has not pursued the conditions necessary to claim the prize.