Questions

Which of the following was the winner of the Grammy Awards 2016 "Rap Album of the Year"?

A] The author of the novel 'The Grapes of Wrath' is Ayn Rand.
B] The author of the novel 'The Fountainhead' is John Steinbeck.
C] The author of the novel 'Ancillary Justice' is Ann Leckie.

Which of the statements given above are not correct?

$$\begin{gathered} ∆ABC is similar to ∆PQR. If ratio of perimeters of ∆ABC and ∆PQR is 1:2 and \\ if PQ = 10 cm then what is the length of AB (in cm)? \end{gathered}$$

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

Who invented Vacuum Flask?

Who invented Rocket?

Who among the following was honored with the "Hridaynath Mangeshkar Award-2017" in October 2017?

World War I started in the year?