10 most difficult technical riddles A list of technical related questions that are most often answered incorrectly Technology quiz What country has got the most permanent research stations in Antarctica?Argentina mantains the most permanent polar stations - 6|Chile - 5|Russia - 5|Poland - 1very hard 25% ArgentinaArgentina25%ChileChile14%PolandPoland15%RussiaRussia44%Created by: lukasz Poland. Statistics based on 1000 answers in 3 languages »Chile riddles » What was the name of the first semi-automatic pistol?Borchardt C93. The Borchardt C-93 semi-automatic pistol was designed by Hugo Borchardt in 1893 based upon the Maxim toggle-bolt design.. With about 1,100 manufactured by Loewe and nearly 2,000 more produced by Deutsche Waffen und Munitionsfabriken, the Borchardt C-93 was the first mass-produced semi-automatic pistol. very hard 26% Glock 17Glock 1739%AK-74AK-745%Borchardt C93Borchardt C9326%None of the above is a semi-automatic pistolNone of the above is a semi-automatic pistol28%Created by: Tschuka. Statistics based on 2780 answers in 2 languages »World War I riddles » What was the name of the first and only Soviet space shuttle?Buran (Snowstorm or Blizzard) was the first spaceplane to be produced as part of the Soviet Buran programme. OK-1K1 completed one unmanned spaceflight in 1988, and was destroyed in 2002 It remains the only Soviet reusable spacecraft to be launched into space. very hard 28% UralUral19%BuranBuran28%GagarinGagarin21%BaikalBaikal31%Created by: Tschuka. Statistics based on 3247 answers in 2 languages »astronautics riddles » What was the the name of the first ocean-going ironclad?Glorie. The French ironclad La Gloire ("The Glory") was the first ocean-going ironclad, developed after the Crimean War and launched during 1859. However Gloire was soon itself rendered obsolete by the launching during 1860 of the British HMS Warrior, the world's first iron-hulled ironclad warship.very hard 28% Warrior Warrior 14%VirginiaVirginia39%MonitorMonitor17%GlorieGlorie28%Created by: Ninjai. Statistics based on 28 answers in 3 languages »ships riddles » Which of these is not one of the basic units of the SI system?V (volt). The International System of Units (abbreviated as SI) is the modern form of the metric system, and is the most widely used system of measurement. It comprises a coherent system of units of measurement built on seven base units (ampere, kelvin, second, metre, kilogram, candela, mole) and a set of twenty decimal prefixes to the unit names and unit symbols.very hard 31% V (volt)V (volt)31%A (ampere)A (ampere)8%MoleMole32%Cd (candela)Cd (candela)26%Created by: Tschuka. Statistics based on 3057 answers in 2 languages »physics riddles » Which Greek inventor is called the "father of pneumatics"?Ctesibius or Ktesibios or Tesibius was a Greek inventor and mathematician in Alexandria, Ptolemaic Egypt. He wrote the first treatises on the science of compressed air and its uses in pumps (and even cannons). This, in combination with his work on the elasticity of air, earned him the title of "father of pneumatics." very hard 34% CtesibiusCtesibius34%PlatonPlaton7%AristotleAristotle19%None of the above, the concept of pneumatics is RomanNone of the above, the concept of pneumatics is Roman37%Created by: Tschuka. Statistics based on 1056 answers in 2 languages »science riddles » What is the latest write-once optical storage media? Digital paper is an electronic artwork file, often in jpeg or png format, featuring a pattern like those found on traditional printed scrapbook paper. After downloading, the paper can be used to create digital scrapbook pages or printed to create crafts, invites, decorations or anything else that typically uses traditional paper.Digital paper is becoming increasingly popular and is widely available.very hard 35% WORM diskWORM disk16%Digital paperDigital paper35%Magneto-optical diskMagneto-optical disk32%CD-ROM diskCD-ROM disk15%Created by: Tschuka. Statistics based on 324 answers in 2 languages »trivia riddles » What is a tachymeter?An instrument designed to measure angles and distances. A tachymeter or tacheometer is a type of theodolite used for rapid measurements and determines, electronically or electro-optically, the distance to target. The principles of action are similar to those of rangefinders. very hard 36% an instrument designed to measure angles and distancesan instrument designed to measure angles and distances36%device designed to measure the speed of vehicle movementdevice designed to measure the speed of vehicle movement14%device for measuring the acceleration of heart ratedevice for measuring the acceleration of heart rate25%an instrument measuring the speed of rotation of the drive shaft in the enginean instrument measuring the speed of rotation of the drive shaft in the engine23%Created by: Tschuka. Statistics based on 456 answers in 2 languages »technology riddles » What was the name of the first commercial car radio? Motorola. In 1930, Paul and Joseph Galvin together with William Lear developed the first car radio on the dashboard and called it "Motorola". The word "Motorola" meant "sound in motion". The first part pointed to the engine, the second part was the popular suffix "ola"hard 44% RadiolaRadiola16%MotorolaMotorola44%BlaupunktBlaupunkt28%ElectrolaElectrola11%Created by: Tschuka. Statistics based on 272 answers in 2 languages »electronics riddles » Which European city has the most skyscrapers?In Moscow. In 2012, seven out of the fifteen highest skyscrapers in Europe were in Moscow. Another few high-rise buildings are under construction.hard 45% in Londonin London25%in Frankfurtin Frankfurt22%in Moscowin Moscow45%in Madridin Madrid6%Created by: Tschuka. Statistics based on 35271 answers in 4 languages »skyscrapers riddles » Play technology quiz and see all the questions.