Zed, and also Izzard.
56. What language has two letters representing the sound of Z?
The Russian.
57. When was the letter W first used?
About the end of the Seventh Century.
58. What changes the sound of a vowel from long to short?
The absence of the accent.
59. In what situation is gh always silent?
After i in the same syllable.
60. How many words of two syllables are changed from nouns to verbs by accent?