questionedithistorytranslationsHow long is the first quarter of a leap year?89 days19190 days23791 days63392 days9331 (January) + 29 (February) + 31 (March) = 91. Easy, isn't it?Share and bring new players to the game!correct this questionNinjaireach: rather globalmathematicsnumbersscienceSadaboutsadaScience quizNumbers quizMathematics quizWhat is the sum of the opposite sides of a dice?7. It's 1+6, 2+5 and 3+4During a full 24-hour day, how many times would the hands of a clock overlap?22. The minute hand makes 24 revolutions, while the hour hand makes 2 revolutions.Which shape is larger?None of them. Both shapes are the same, but the bottom one is placed more to the right. This is however difficult to notice. It is known as Jastrow Illusion.Which Croatian island is the largest?Both Krk and Cres. Krk had been thought to be the largest Adriatic island, with an area of 405.78 km2 until geographical survey and remeasurements done in 2011 determined that the neighboring island of Cres has an equal surface area. Krk is the most populous island in the Adriatic sea, with multiple towns and villages that contain a total of 19,383 (2011) inhabitants.