Questions

Piano was invented by ________.

If sec -7π/4 = x, then the value of x is

The 2018 ICC Women's World Twenty20 was hosted in ______________ from 09th to 24th November 2018, during the 2018–19 international cricket season. 

What is the altitude of an equilateral triangle whose side is 12 cm?

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button
corresponding to it. If the sentence is free from error, click the "No error" option.
(A) Still
(B) waters
(C) run deep
(D) No Error

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the fourand indicate it by selecting the appropriate option.

Happy thoughts release hormones that work for our well-being and negative thoughts release hormones that make us ______.

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

What is the ratio of masses of hydrogen and oxygen in the water?