Problem: The U.S. Institute of Medicine (IOM) updated Estimated Average Requirements (EARs) and Recommended Dietary Allowances (RDAs) for iron in 2001. The current EAR for iron for women ages 14–18 is 7.9 mg/day, 8.1 for ages 19–50 and 5.0 thereafter (post menopause). For men the EAR is 6.0 mg/day for ages 19 and up. The RDA is 15.0 mg/day for women ages 15–18, 18.0 for 19–50 and 8.0 thereafter. For men, 8.0 mg/day for ages 19 and up. RDAs are higher than EARs so as to identify amounts that will cover people with higher than average requirements. RDA for pregnancy is 27 mg/day and, for lactation, 9 mg/day. For children ages 1–3 years 7 mg/day, 10 for ages 4–8 and 8 for ages 9–13. As for safety, the IOM also sets Tolerable upper intake levels (ULs) for vitamins and minerals when evidence is sufficient. In the case of iron the UL is set at 45 mg/day. Collectively the EARs, RDAs and ULs are referred to as Dietary Reference Intakes.
Answer this question based on the article: How many mg/day higher is the ULs for iron than the RDA for pregnant women?
A: 18

Problem: Eventually the Commonwealth Sejm voted to raise the funds necessary to resume large scale military operations. The final attempt by Sigismund and Władysław to gain the throne was a new campaign launched on 6 April 1617. Władysław was the nominal commander, but it was hetman Chodkiewicz who had actual control over the army. In October, the towns of Dorogobuzh  and Vyazma  surrendered quickly, recognizing Władysław as the tsar. However, the Commonwealth forces suffered defeats between Vyazma and Mozhaisk, and Chodkiewicz's plans for a counterattack and an advance to Moscow failed. Władysław did not have enough forces to advance to Moscow again, especially because the Russian support  for the Poles was all but gone by that time. In response to Władysław's invasion, the burghers of Smolensk revolted against Polish rule, and the Polish troops had to fight their way back as they retreated from the city. However, in 1617 Polish forces, besieged in Smolensk  by Russian forces, were relieved by Lisowczycy, when Russian forces retreated to Bely soon after receiving news that Lisowczycy, then commanded by Stanisław Czapiński, had appeared in the area. In 1618 Petro Sahaidachny's campaign against Muscovy resulted in sacking numerous forts such as Putivl, Kursk, Yelets, and others. Together with Chodkiewicz he laid siege to Moscow in September 1618. Due to unclear reasons, both Hetmans failed to take the city. Negotiations began and a peace treaty was signed in 1618.
Answer this question based on the article: How many months after the new campaign was launched did Chodkiewicz he lay siege to Moscow?
A: 17

Problem: Following two consecutive wins at Giants Stadium, the Bears were to finish a three-game road trip at Gillette Stadium against the New England Patriots. Similar to the week nine confrontation with the Miami Dolphins, turnovers contributed to the Bears' 17-13 loss against the Patriots.  The opening two quarters were a story of turnovers in a Rex Grossman interception by Asante Samuel, a Benjamin Watson catch knocked into the hands of Charles Tillman, a blocked Bears field goal attempt, and fumbles by Laurence Maroney and Grossman.   The third quarter saw a bizarre sequence of turnovers - first fumbles by both Watson and Reche Caldwell on the same play, followed by another Samuel interception of Grossman, and finally a second Tillman interception of Brady.   Through three quarters the game was tied 10-10 before a drive where Brady faked out Brian Urlacher on a nine-yard run ended in a two-yard score to Watson.  Turnovers then ended the game, with a Corey Dillon fumble followed by Samuel's third interception of Grossman.  Samuel's three picks tied Roland James in Patriots history for three interceptions in one game.
Answer this question based on the article: How many fumbles did the Bears have in the first half?
A:
2