The city slopes gently from the northwest to southeast on a till plain composed largely of glacial and lake clay. The most notable topographical feature in the city is the Detroit Moraine, a broad clay ridge on which the older portions of Detroit and Windsor sit atop, rising approximately 62 feet (19 m) above the river at its highest point. The highest elevation in the city is located directly north of Gorham Playground on the northwest side approximately three blocks south of 8 Mile Road, at a height of 675 to 680 feet (206 to 207 m). Detroit's lowest elevation is along the Detroit River, at a surface height of 572 feet (174 m).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the lowest point in Detroit along side?
Ah, so.. Detroit River

While Goring was optimistic the Luftwaffe could prevail, Hitler was not. On 17 September he postponed Operation Sea Lion (as it turned out, indefinitely) rather than gamble Germany's newly gained military prestige on a risky cross-Channel operation, particularly in the face of a sceptical Joseph Stalin in the Soviet Union. In the last days of the battle, the bombers became lures in an attempt to draw the RAF into combat with German fighters. But their operations were to no avail; the worsening weather and unsustainable attrition in daylight gave the OKL an excuse to switch to night attacks on 7 October.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did the OKL switch to night raids?
Ah, so.. 7 October

The RIBA has three parts to the education process: Part I which is generally a three-year first degree, a year-out of at least one year work experience in an architectural practice precedes the Part II which is generally a two-year post graduate diploma or masters. A further year out must be taken before the RIBA Part III professional exams can be taken. Overall it takes a minimum of seven years before an architecture student can seek chartered status.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is required by the second stage in the education provisions set out by RIBA?
Ah, so..
a two-year post graduate diploma or masters