How many triangles are there on the puzzle below?

What number when divided in half becomes zero?

Pronounced as 1 letter, And written with 3, 2 letters there are, and 2 only in me. I’m double, I’m single, I’m black blue and grey, I’m read from both ends, and the same either way. What am I?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

I know a nine-letter word having only one vowel.
Do you ?

Spot 5 differences in two Christmas tree below:

There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.

Can you find that number?

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

What does this rebus puzzle means ?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?