Can you convert the number zero(0) into a positive number using just one mathematical operator ?

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

What is both possible and impossible at the same time?

What does the below rebus riddle means?

Decode The Message

carrot fiasco nephew spring rabbit
Sonata Tailor Bureau Legacy Corona
travel bikini object happen soften
picnic option waited effigy adverb
report accuse animal shriek esteem
oyster

Find the next number in the series.
1 10 24 43 67 ?

How many Watermelons are there in the below picture?