Well we've now reached the climax of this gripping contest. The sole entrant was greatkingrat, who took the novel approach of not looking up any of the answers in the counting thread, though he assures me that they're not completely random. Let's see how he got on. Just for fun I've included the actual entry for each of his guesses, as well as a list of all the answers to each question that I found. (There may well be others that I've missed.)

(1) a train or class of train (including locomotives). greatkingrat's answer: 507 (incorrect)

*The BMW 507 was a roadster produced between 1956-59.* Difficult to get that one on the rails.

Possible answers: Class

**444** on SWT; Class

**450** "Blue Desiro"; Class

**455**; Class

**458**; Class

**466** Networker; Class

**483** (1938 Tube Stock);

**508** (odd coach on 455/7); locomotives

**822** and 823; Union Pacific

**844**; D

**867** diesel locomotive;

**928** Stowe; D

**1003** Western Pioneer;

**1014** locomotive restoration project; D

**1017** Western Warrior

(2) a submarine. GKR: 781 (incorrect)

*781 in Dewey Decimal Classification denotes general musical principles and forms.* Such as in "Yellow Submarine", no doubt.

Possible answers: U-

**438**; U-

**460**; U-

**504**; U-

**556**; U-

**571** (fictional); U-

**582**; USS Scorpion SSN

**589**; U-

**856**; U-

**864**; U-

**871**
(3) a type of computer or calculating machine. GKR: 486 (incorrect)

*486 AD is ten years after the fall of Rome.* What a shame! If only they'd hung on for another ten years, the Romans might have invented the computer.

Possible answers: IBM

**602** Calculating Punch; IBM

**610** Auto-Point Computer; IBM

**701**; Atari

**800**; Elliott

**803**; Xerox

**820**
(4) a food additive. GKR: 836 (incorrect)

*Steward 836 at the Download Festival 2011 became a small internet star due to his antics.* I really don't think I'd want

*him* in my food.

Possible answers: E

**516** (calcium sulphate); E

**622** (monopotassium glutamate); E

**640** (glycine); E

**904** (shellac); E

**938** (argon); E

**950** (acesulfame K); E

**954** (saccharin); E

**958** (glycyrrhizin)

(5) an outdoor sport other than (association) football. GKR:

**501** (correct)

*Brian Lara scored 501 not out for Warwickshire against Durham in 1994, the highest individual score in first-class cricket.* Hurray! Will GKR emulate Lara's success from now on?

Other possible answers:

**470** yards on a par 5 (golf); Hanif Mohammad run out for

**499** (cricket); .

**525** Cincinnati Reds' winning percentage (baseball); Norm Van Brocklin's

**554** yards (American football); .

**574** Mike Carp's slugging percentage (baseball); Tejaswini Sawant's

**597** (shooting); Red Holzman's

**613** wins (basketball);

**949** Athletics (volleyball)

(6) a song or individual musical work (not an album). GKR: 933 (incorrect)

*Take the first six prime numbers: 2 3 5 7 11 13. Insert 933 between each pair: 2 933 3 933 5 933 7 933 11 933 13. Concatenate to a single number: 29333933593379331193313. This number is prime.* I tried setting it to music, but I don't think it'll catch on.

Possible answers: K.

**467** (Mozart's "Elvira Madigan" Concerto);

**476** in Rolling Stone's top 500 ("I Want To Know What Love Is" by Foreigner);

**5:15** (on The Who's album Quadrophenia);

**543** (start of "5-4-3-2-1" by Manfred Mann);

**678** (part of "5-6-7-8" by Steps);

**747** ("747 Strangers in the Night" by Saxon);

**909** ("One After 909" by the Beatles); BWV

**925** (Bach's Little Fugue in C); BWV

**934** (Bach's Little Prelude in C Minor)

(7) a type of drink, or the manufacturer of a drink. GKR: 624 (incorrect)

*624 = Last three digits of the STD code for the Isle of Man.* Well they do brew beer on the Isle of Man I suppose. They also make something called

Manx Spirit which pretends to be whisky.

Possible answers: Breckenridge

**471** Small Batch IPA (beer);

**612**Brew (brewery);

**667** Pinot Noir (wine);

**901** Silver (tequila);

**941** ml (amount of vodka);

**989** (energy drink)

(8) a commercial business with the number in its name. GKR: 999 (incorrect)

*999 is the emergency telephone number for the United Kingdom used to summon the Police, Ambulance, Fire Brigade and Coastguard services.* Surprise surprise! Perhaps GKR thought they'd been privatised.

Possible answers:

**463** Communications;

**505** (video games publisher); Fly

**540**; Laser

**558** (radio station);

**5.7.9** (clothing retailer);

**612**Brew;

**679** Artists (record label);

**7-Eleven** (convenience store);

**826** National (tutoring company):

**828** Chinese Takeaway;

**848** Group (business services);

**983** Bushwick's Living Room (bar in New York); Cafe

**1001**;

**Ten Thirteen** Productions[*];

**1019** Cafe

[*]GKR posted this one himself just over two weeks ago. A bit of an own goal?

(9) a mathematical fact involving prime numbers. GKR: 719 (incorrect)

*The A719 contains the "Electric Brae", south of Dunure, not far from Ayr, between Drumshrang and Knoweside.* That's where cars appear to roll uphill, defying the laws of physics - almost the opposite of a mathematical fact. 719 is prime though.

Possible answers:

**563** (Wilson prime);

**593** ("good prime");

**641** (prime factor of Fermat number);

**683** (Wagstaff prime);

**769** (different prime when digits reversed);

**821** (in prime quadruplet);

**830** (sum of primes);

**866** (sum of squares of primes);

**933** (can be inserted between primes to create another);

**947** (balanced prime);

**953** (prime factor of 54321);

**991** (permutable prime);

**1021** (primorial prime)

(10) a national assembly or parliament. GKR:

**650** (correct)

*There are 650 elected Members of Parliament in the House of Commons.* A late surge! The ayes have it at last.

Other possible answers:

**535** (seats in US House of Representatives plus Senate);

**538** (votes in US Electoral College);

**651** (MPs in 1992-97 House of Commons);

**659** (MPs in 1997-2005 House of Commons);

**664** (members of the Assembly of the Union in Myanmar); House of Commons Early Day Motion

**945**
So that's two right answers and eight wrong ones. The rules don't specify how to score a wrong answer if no correct ones are submitted, so I can't calculate a score, but fortunately it doesn't matter as greatkingrat wins by default anyway. Well done!

Next up: "Rare Entries meets Tumbleweed"