What question can you never answer yes to?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

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

What Word am I Looking For ?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

Only one color, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

Which wheel of car does not rotate when you turn your car right?

Decode below rebus
D
N
A
T
S , D

What is more useful when it is broken?