Math questions This is a list of recently added questions about math. Which famous scientist was born on the Pi day? (March 14)Albert Einstein. 14 of March is celebrated on many schools and universities as both Pi Day and the birthday of Albert Einstein. On of the traditions is the 'Pi Pie' (pictured).Created by: globalquiz.orghard 46% Albert EinsteinAlbert Einstein5690Blaise PascalBlaise Pascal2224Isaac NewtonIsaac Newton2066all of the aboveall of the above2154scientists riddles » Which of the following is a prime number?16769023. A prime number has no positive divisors other than 1 and itself. Hence, a prime bigger than 2 cannot be even. All prime numbers bigger than 5, written in the usual decimal system, end in 1, 3, 7, or 9. Created by: Sumit Tamangaverage 67% 238829902388299015341676902316769023112723837729638377296144911723835117238352544numbers riddles » Let's say the stock price was 10 two days ago. It has dropped by 50% yesterday and raised by 50% today. What is the stock price now?7.5. Stock price was 10 two days ago. Yesterday it dropped by 50% to 5. Today it raised by 50% (of 5) to 7.5Created by: globalquiz.orgeasy 74% 1010163512.512.513307.57.593002020247economy riddles » How many possible code combinations are there for this kind of lock?10000. The possible codes are from 0000 to 9999 inclusive. There are 10 possibilities for each ring, thus there are 10*10*10*10 possible codes.Created by: Teddyhard 52% 9999995971000100086599999999481910000100007009bicycles riddles » If Earth's radius was larger by 1 meter, how much longer would its equator be?By approx 6 meters. For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the initial value of radius was.Created by: SpikeMehard 45% by approx 6 metersby approx 6 meters11519by approx 6 kilometersby approx 6 kilometers4650by approx 60 kilometersby approx 60 kilometers5385by approx 6000 kilometersby approx 6000 kilometers4032Earth riddles » How many edges does a cube have?12. A cube has six square faces, each of which has four edges - but each edge is shared with another face.Created by: globalquiz.orgvery easy 80% 4428588225812121862716162082geometry riddles » How many edges does a Möbius strip have?One. The Möbius strip is a surface with only one side and only one boundary component (edge). A line drawn starting from the seam down the middle will meet back at the seam but at the "other side". If continued the line will meet the starting point and will be double the length of the original strip.Created by: globalquiz.orgeasy 72% oneone11420twotwo2948threethree728fourfour567mathematics riddles » Typically, how many leap years are in a century?24. The Gregorian Calendar omits 3 leap days every 400 years, omitting February 29 in the 3 century years (integer multiples of 100) that are not also integer multiples of 400. For example, 1600 was a leap year, but 1700, 1800 and 1900 were not. Similarly, 2000 was a leap year, but 2100, 2200, and 2300 will not be.Created by: ex-terminatorhard 42% 202013442424617425256467100100599calendar riddles » Augustus was born on 1 January 10BC. Which birthday did he celebrate at 1 January 10AD?19. There was no year number zero. There were only 1999 years between 1000BC and 1000AD.Created by: Gizem İsmailoğluvery hard 38% 1919627920206180212132048080859ancient history riddles » Play mathematics quiz and see all the questions.