Which is not a source of air pollution?

Who among the following has been named by the Indian Olympic Association as the Press Attache of India's Olympic contingent?

In the following questions groups of four words are given. In each group, one word is mis-spelt. Find the mis-spelt word and mark your answer. 

124th birth anniversary of former PM Morarji Desai was celebrated on which date?

Who won the Silver Bear for Best Director at theBerlin International Film Festival?

Study the following information carefully and answer the questions given below :
Sagar sells mobiles of seven different companies viz., Samsung, HTC, Lenovo, Intex, Micromax, Nokia and Oppo starting from Monday and ending on Sunday, but not necessarily in the same order. Sagar sold HTC on Monday. He sold only three mobiles between HTC and Samsung. He does not sell any mobile between the day he sold Samsung and Lenovo. He sold only two mobiles between Lenovo and Oppo. He sold Micromax mobiles the day immediately before the day he sold Oppo mobiles. He sold Intex on one of the days after Oppo but not on Sunday.

How many mobiles did Sagar sell between HTC and Lenovo?

According to IHS market, what is India's estimated GDP for 2021-22?

The ruler of Jodhpur at the time of Revolt of 1857 was -