### true or lie

Two kids are liars, three can only say the truth. Julia: ” Jack is only a liar, if John is telling the truth.”Jack: “If Joey doesn’t lie, then either Julia or John do.”Joey: ” Jane lies, as does Julia or … Read More

Two kids are liars, three can only say the truth. Julia: ” Jack is only a liar, if John is telling the truth.”Jack: “If Joey doesn’t lie, then either Julia or John do.”Joey: ” Jane lies, as does Julia or … Read More

You are having a family-barbeque. In attendance are a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one father-in-law, one mother-in-law and one daughter-in-law. If every person is eating … Read More

You have three steaks that you want to fry. Each steak need 15 minutes to be done, with 7.5 minutes for each side. You have a small pan where only two steaks fit at the same time. What’s the shortest … Read More