Problem: Text: Superfecundation is the fertilization of two or more ova from the same cycle by sperm from separate acts of sexual intercourse, which can lead to twin babies from two separate biological fathers. The term superfecundation is derived from fecund, meaning the ability to produce offspring. Heteropaternal superfecundation refers to the fertilization of two separate ova by two different fathers. Homopaternal superfecundation refers to the fertilization of two separate ova from the same father, leading to fraternal twins. While heteropaternal superfecundation is referred to as a form of atypical twinning, genetically, the twins are half siblings. Superfecundation, while rare, can occur through either separate occurrences of sexual intercourse or through artificial insemination.

Question: is it possible for twins to have separate fathers?
A: yes

Problem: Text: A bed of nails is an oblong piece of wood, the size of a bed, with nails pointing upwards out of it. It appears to the spectator that anyone lying on this ''bed'' would be injured by the nails, but this is not so. Assuming the nails are numerous enough, the weight is distributed among them so that the pressure exerted by each nail is not enough to puncture the person's skin.

Question: can you sleep on a bed of nails?
A: yes

Problem: Text: A tampon tax is the term used to call attention to the fact that tampons--and other feminine hygiene products used to manage menstrual flow--are subject to value-added tax, at odds with the tax exemption status granted to other products considered basic necessities. Known as ''period poverty'' this situation has resulted in efforts to eliminate taxes on these products. Proponents of tax exemption argue that tampons, sanitary napkins, menstrual cups and comparable products constitute basic, unavoidable necessities for women and thus should be made tax exempt. The tax in Canada was removed in mid-2015 and women protested in the United Kingdom later that year. Other countries later followed suit. The BBC estimates that women--half of the global population--need to use feminine hygiene products for about a week each month for about 30 years. While sales tax policy varies across jurisdictions, these products were typically taxed at the same rate as non-essential goods, such as in the United States, while other countries, such as the United Kingdom and Ireland, reduced or eliminated their general consumption tax on sanitary products. The tampon tax is not a special tax levied directly on feminine hygiene products. On July 21st, 2018, India eliminated the Goods and Services Tax (GST) of 12% from sanitary napkins.

Question: are tampons and pads taxed in the us?
A:
yes