Education is the key that give us a knowledge & Wisdom to live a purposefull life. Or we can say that give us a deeply consideration about anythings in the Universe.

Yes , this sentence is correct.

do you know? do we know? do they know? does he/she know ? do ka use hum you/we/they ke sath karte h. or does ka use hum he/she/it ke sath karte h.

The National flower is Lotus ( Kamal ka phool).

What work have I given you. is a right answer of above question.

''Ravi and I.'' two person h(Bahubachan), isliye '' are " aaya h... so.. ''Ravi and I'' are good chess players.

what do you do?

who are those?

envelopes

I also face this problem.