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Virgil's biographical tradition is thought to depend on a lost biography by Varius, Virgil's editor, which was incorporated into the biography by Suetonius and the commentaries of Servius and Donatus, the two great commentators on Virgil's poetry. Although the commentaries no doubt record much factual information about Virgil, some of their evidence can be shown to rely on inferences made from his poetry and allegorizing; thus, Virgil's biographical tradition remains problematic.
Is Virgil's biographical tradition easily researched or is it problematic?
A: problematic

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Commercial credit and agricultural consumer loans were the main types of loans. The trade credit was usually extended by temples in order to finance trade expeditions and was nominated in silver. The interest rate was set at 1/60 a month (one shekel per mina) some time before 2000 BC and it remained at that level for about two thousand years. Rural loans commonly arose as a result of unpaid obligations due to an institution (such as a temple), in this case the arrears were considered to be lent to the debtor. They were denominated in barley or other crops and the interest rate was typically much higher than for commercial loans and could amount to 1/3 to 1/2 of the loan principal.
Who extended personal credit to citizens?
A: unanswerable

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As of 2009[update], the Wayback Machine contained approximately three petabytes of data and was growing at a rate of 100 terabytes each month; the growth rate reported in 2003 was 12 terabytes/month. The data is stored on PetaBox rack systems manufactured by Capricorn Technologies.
Who makes PetaBox rack systems?
A: Capricorn Technologies

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In the 201112 season, Arsenal celebrated their 125th year anniversary. The celebrations included a modified version of the current crest worn on their jerseys for the season. The crest was all white, surrounded by 15 oak leaves to the right and 15 laurel leaves to the left. The oak leaves represent the 15 founding members of the club who met at the Royal Oak pub. The 15 laurel leaves represent the design detail on the six pence pieces paid by the founding fathers to establish the club. The laurel leaves also represent strength. To complete the crest, 1886 and 2011 are shown on either sides of the motto "Forward" at the bottom of the crest.
What is on top of the crest?
A:
unanswerable