Mozart wrote three: The Marriage of Figaro, The Magic Flute and Don Giovanni
Second Answer
Mozart wrote more than 20 operas, beginning at age 11. Those still holding the international stage are Idomeneo, The Abduction From the Seraglio, La Clemenza de Tito, The Marriage of Figaro, Don Giovanni, Cosi Fan Tutte and The Magic Flute. Several others receive occasional performances and all of them have been recorded at least once.
Mozart
This is one of three Mozart operas.
Mozart composed operas in German and Italian. Don Giovanni, Le nozze di Figaro, and Così fan tutteare three of his most popular Italian operas.
Mozart composed numerous operas - musical plays - which are still performed today.
Mozart was a prolific composer. He composed all of the above - operas, symphonies and piano concertos - as well as songs and serenades, canons, piano sonatas, string quartets and quintets, chamber music, masses, dances and divertimentos. Traditionally, Mozart is believed to have composed 41 symphonies, but that figure has recently been revised to 68. He wrote 27 piano concertos, five known violin concertoes (possibly several more), four horn concertoes and at least 8 other concertoes. Mozart also composed 23 known operas.
Da Ponte, Mozart Librettist wrote Mozart's 3 best Operas - Figaro, Giovanni and Così Fan Tutte.
The style of music that he used was neoclassicism.
Giacomo Puccini, an Italian composer, is well-known for his contributions to opera, having composed 12 operas, including famous works like "La Bohème" and "Tosca." However, if you're referring to those who composed 21 operas, that title is often associated with Wolfgang Amadeus Mozart, who wrote 22 operas, including classics like "The Marriage of Figaro" and "Don Giovanni." Another notable composer is Giuseppe Verdi, who also wrote 26 operas.
Operas composed by other composed are not Puccini operas.
On paper
He wrote more than one, but the most famous is probably the "Marriage of Fiagaro"
Mozart composed many more concertos for piano than for any other instrument.