What number when divided in half becomes zero?

Can you find the missing piece of the Porsche?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

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

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

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

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

What has one letter and starts with an E?

Be active and find the killer in the picture Riddle below.

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?