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➡ The problem: Hal and Carol accept an invitation to a house party. Hal sees that there will be 30 people attending the party and says to Carol, “I bet you $100 that at least two people will have the same birthday there!” Should Carol take that bet? (Assume that birthdays are distributed equally over a 365-day year.) . . . . . . . . . --------- Don't look at the solution until you figure your answer .................

“8÷2(2+2).” Can you solve this math problem? The equation went viral online this week on Twitter causing major confusion over the right answer. Mathematicians and physicists went nuts about it. Mike Breen, the Public Awareness Officer for the American Mathematical Society, told popular Mechanics: “The way it’s written, it’s ambiguous. In math, a lot of times there are ambiguities. Mathematicians try to make rules as precise as possible.” Depending on where in the world you learned math, as Mashable reported, determines how you can solve the problem.

There are also traditional word problems. Twitchy has found a word problem that may be the most egregiously awful math problem the Common Core has produced yet. Take a look: 15. Juanita wants to give bags of stickers to her friends. She wants to give the same number of stickers to each friend. She's not sure if she needs 4 bags or 6 bags of stickers. How many stickers could she buy so there are no stickers left over?

“Number sense,” courtesy of Common Core? We don’t know the source of that math problem, but based on what we’ve seen elsewhere, it has all the hallmarks of Common Core math. Now try your hand at this third-grade math problem, also reportedly from a Common Core lesson: Common Core: It’s For the Children™.

It seems to be a math problem to figure out map coordinates where Eigen is a vector of some sort. User name Cauchy3 on Stratics.com is making what he calls poems, it seems to be map coordinates and targets of some sort: Here is his latest ‘poem’: Cauchy3-chain-Eigen values… Markov chains consider two cases. Go to lands with purely honors take the zeroes. Heck to jacks are ones. Know it all but take the good. How Markov chain become multiplications identities. Causes the cases are ones or zeroes. Jacks in boxes are all with zeroes. Both when times up take...