By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Can you start the fire using two pieces of wood?

Replace all '*' with digits 1, 2, 3, 4, 5 and 6 to make below statement true.

* *
x *
=====
* * *

There are two beautiful yet remote islands in the South Pacific. The Islanders born on one island always tell the truth, and the Islanders from the other island always lie.
You are on one of the islands and meet three Islanders. You ask the first which island they are from in the most appropriate Polynesian tongue, and he indicates that the other two Islanders are from the same island. You ask the second Islander the same question, and he also indicates that the other two Islanders are from the same island.
Can you guess what the third Islander will answer to the same question?

Which is the smallest number that you can write using all the vowels exactly once?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

Spot the cat in the picture below

Can anyone tell me a word in the English dictionary which has a silent 'z'?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.