Can you place six X (crosses) in below board without making three in a row in any way ?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

What does this rebus mean?

O
N
C
E
TIME

What does the below rebus riddle means?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

Which of the below owl is odd one out?

What is black when you buy it, red when you use it, and gray when you throw it away?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?