General Knowledge & Technology Quiz

This is a clever word puzzle about spelling numbers from zero to one thousand. If you write out all numbers in words (zero, one, two... nine hundred ninety nine), none contain the letter 'A' until you reach 'one thousand', which does contain 'A'. This makes the statement true.

BRICS originally consisted of Brazil, Russia, India, China, and South Africa. Indonesia is not a member of BRICS. Note that option C has a typo - 'SA`' should be 'SA' (South Africa). The current BRICS members are the original five plus newer members (Iran, Egypt, UAE, Ethiopia - as of 2024), but Indonesia remains outside the group.

Daman is the capital of the union territory of Daman and Diu. Diu is also part of the territory but is not the capital - the administrative headquarters are in Daman. Kavaratti is the capital of Lakshadweep, not Daman and Diu.

Sir Osborne Smith was the first Governor of the Reserve Bank of India, serving from 1935-1937. He was a professional banker from Australia. The RBI was established in 1935, and Smith was appointed as its first chief. Note that he's not the same as 'George Smith' in option D.

The key to this riddle is the date: August 15, 1989 was India's Independence Day, a national holiday when all banks are closed. The gardener's alibi that he 'went to the bank' is therefore suspicious and false - banks would not be open on a national holiday. This inconsistency reveals him as the likely killer. The other family members' alibis (kitchen, play, buying vegetables) would still be possible on a holiday.

The Image2 class acts as a proxy, creating RealImage lazily (only on first use) and then delegating calls. This avoids loading expensive resources until needed and reuses the loaded object for subsequent calls, classic Proxy pattern.

WPF (Windows Presentation Foundation) strongly recommends MVVM (Model-View-ViewModel) for separation of concerns. MVVM works particularly well with tree structures and lazy loading through data binding and command patterns.

Among the options, SSDs and quad-core processors are established technologies from the mid-2000s. The 'latest version of Ubuntu' is technically the newest release at any given time, as Ubuntu versions are released every 6 months. However, this question is temporally unstable - the answer changes as new Ubuntu versions are released.

This is the classic conditional probability puzzle. The sample space is all 2-child families where at least one child is a boy born on Tuesday. There are 27 equally likely possibilities (7x7 - 1 + 7 for the double-counted BB-Tue/BB-Tue case). Of these, 13 have two boys (BB-Tue/BB-Tue + 12 others where one is BB-Tue and the other is a boy on a different day). Thus P(2 boys | at least 1 boy born Tuesday) = 13/27.

Pearls are primarily calcium carbonate (CaCO3), which reacts with acids. Vinegar contains acetic acid (weak acid) that can dissolve calcium carbonate through the reaction: CaCO3 + 2CH3COOH → Ca(CH3COO)2 + H2O + CO2. While stronger acids like sulfuric and nitric would also work, vinegar is commonly cited in trivia about pearl dissolving.

Coconut water is chemically similar to human blood plasma in terms of electrolyte balance and pH. During World War II, coconut water was reportedly used as an emergency plasma substitute when medical supplies were scarce, as it is sterile and compatible with human blood composition.

Elephants are physically unable to jump due to their massive weight - they cannot lift all four feet off the ground simultaneously. While other animals listed (giraffe, penguin, polar bear) have their own movement limitations, elephants are uniquely unable to jump at all.