Tag: general knowledge

Bats use ultrasonic waves (echolocation) - they emit high-frequency sound waves above human hearing range and navigate by interpreting the echoes. This is different from infrared or ultraviolet which are electromagnetic waves.

According to Indian census data, after Hindi, Telugu is spoken by the largest number of people as their first language. This is based on native speaker counts, not total speakers.

Finland is officially known as 'The Land of a Thousand Lakes' - it has approximately 188,000 lakes (more than the nickname suggests). Scotland, Ireland, and England don't have this epithet.

Bhutan is known as 'Land of Thunderbolt' (Druk Yul in Dzongkha). The name comes from the violent thunderstorms of the Himalayas and the Buddhist deity Dorje (Vajra/thunderbolt). Myanmar and Burma are the same country.

The Grand Slam bomb was a 22,000 lb earthquake bomb developed by British scientist Barnes Wallis and used by RAF Bomber Command against strategic targets like U-boat pens and viaducts in Germany during World War II. The United Kingdom was the sole operator of this weapon.

Madhuri Dixit made her Bollywood debut in the 1984 film 'Abodh' as a young actress, though the film was not commercially successful. She gained widespread recognition and stardom later with 'Tezaab' (1988), followed by major hits like 'Dil' and 'Hum Aapke Hain Koun..!'

Given the operation x ^ y = 2x + y, we need to find a such that 2 ^ a = a ^ 3. This means 2(2) + a = 2(a) + 3, which simplifies to 4 + a = 2a + 3. Solving gives a = 1. Both sides equal 5 when a=1.

Kochi (also known as Cochin) has historically been called the 'Queen of the Arabian Sea' due to its strategic location as a major port city on the Malabar Coast. It was an important center for spice trade and attracted colonial powers like the Portuguese, Dutch, and British.

With 45 streetlights spaced 30m apart in total, the road has 44 gaps between consecutive lights. The length is 44 × 30 = 1320m. Since lights are staggered on opposite sides filling gaps, this represents the full road length, but the question asks for the stretch with lights, which is 660m (22 gaps on one side).

Puerto Rico's name literally means 'rich port' in Spanish. Christopher Columbus named it 'San Juan Bautista' and the capital 'Puerto Rico', but the names were later swapped. The island was known for its gold and strategic harbor.