Tank is normally filled in 8 hours but takes 2 hours longer to fill because of a leak in its bottom. If the cistern is full, in how many hours will the leak empty it? 

In which of following locations did the 1920 Indian National congress take place?

What is the name of a multi-purpose decontamination device developed by Devaditek that can sanitize items ranging from N95 masks to vegetables by using ultraviolet germicidal irradiation technology?

Which blood vessels have the smallest diameter?

The average wages of 500 workers were found to be 200. Later on, it was discovered that the wages of two workers were misread as 180 and 20 instead of 80 and 220. The correct average wages are: 

If $$ P={{x^2-36}\over{x^2-49}}$$ and $$ Q={{x+6}\over{x+7}}$$ then the value of $$ {P\over{Q}}$$ is.

Recently, which establishment day was celebrated by the Central Reserve Police Force (CRPF) on 27 July 2020?

Which institute has recently developed a device called 'Veli Band' to ensure social distancing?