Question: Modern editions of Old English manuscripts generally introduce some additional conventions. The modern forms of Latin letters are used, including g in place of the insular G, s for long S, and others which may differ considerably from the insular script, notably e, f and r. Macrons are used to indicate long vowels, where usually no distinction was made between long and short vowels in the originals. (In some older editions an acute accent mark was used for consistency with Old Norse conventions.) Additionally, modern editions often distinguish between velar and palatal c and g by placing dots above the palatals: c, g. The letter wynn is usually replaced with w, but sc, eth and thorn are normally retained (except when eth is replaced by thorn).
Is there an answer to this question: What are used to indicate short vowels?

Answer: unanswerable

Question: Bewick then describes an experiment which succeeded in keeping swallows alive in Britain for several years, where they remained warm and dry through the winters. He concludes:
Is there an answer to this question: How long did the birds stay alive?

Answer: several years

Question: In 144 BC Emperor Jing abolished private minting in favor of central-government and commandery-level minting; he also introduced a new coin. Emperor Wu introduced another in 120 BC, but a year later he abandoned the ban liangs entirely in favor of the wuzhu () coin, weighing 3.2 g (0.11 oz). The wuzhu became China's standard coin until the Tang dynasty (618907 AD). Its use was interrupted briefly by several new currencies introduced during Wang Mang's regime until it was reinstated in 40 AD by Emperor Guangwu.
Is there an answer to this question: What coin replaced the ban liangs after only a year of distribution?

Answer: wuzhu

Question: There are occasional brief hints and allusions in his longer works however that Avicenna considered philosophy as the only sensible way to distinguish real prophecy from illusion. He did not state this more clearly because of the political implications of such a theory, if prophecy could be questioned, and also because most of the time he was writing shorter works which concentrated on explaining his theories on philosophy and theology clearly, without digressing to consider epistemological matters which could only be properly considered by other philosophers.
Is there an answer to this question: What did Avicenna consider when explaining his theories on philosophy?

Answer:
unanswerable