एका विद्यार्थ्यांला एका संख्येला 12 ने गुणायला सांगीतले होते चुकून त्याने त्या संख्येला 21 ने गुणले ह्याने त्याचे उत्तर बरोबर उत्तरा पेक्षा 63 ने जास्त आले. तर ज्या संख्येला गुणायचे होते ती संख्या कोणती?

Choose the correct question tag to fill in the blank.
I am the happiest man in my town, ________?

A hardware or software device that is able to modify data according to instructions is called a ________.
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After the word, four meanings are given. Choose the correct alternative from the following:
Directory

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'to dictate letters' mean

The underlined idiom in the following sentence means
People these days want to be rich overnight; naturally they try to earn money by hook or crook.