("Imagine there is a circle. The origin and the point (4,0) are on the circle. The circle is symmetric with respect to the line x=y. Where is its center? ",lambdax:"2,2"in("".join(x.split())).strip("()[]{}")),

("In a rectangular triangle, if the two shortest sides have lengths 3 meters and 4 meters, how long is the longest side?",lambdax:"5m"in("".join(x.split())).replace("meters","m").replace("meter","m"))

("In a rectangular triangle, if the two shortest sides have lengths 3 meters and 4 meters, how long is the longest side?",lambdax:"5m"in("".join(x.split())).replace("meters","m").replace("meter","m")),

("What is the fifth decimal digit of π?",lambdax:"9"=="".join(list(filter(lambdax:x.isdigit(),x)))),

("What is the determinant of the following matrix?\n/ 2 0 \\\n\\ 3 4 /",lambdax:"8"=="".join(list(filter(lambdax:x.isdigit(),x)))),

("How many bytes are there in a MiB?",lambdax:"1048576"=="".join(list(filter(lambdax:x.isdigit(),x)))),

("What does a mine turtle have on its back?",lambdax:"button"inx.lower()or"trigger"inx.lower()),