Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

If eleven plus two equals one, what does nine plus five equal?

What has a ring but no finger?

By using all numbers, i.e. 123456789 and subtraction/addition, operators number 100 can be formed in many ways.
Example: 98 + 7 + 6 - 5 - 4 - 3 + 2 - 1 = 100

But if we add a condition use of the number 32 is a must. Then there are limited solutions.
One of such solution is: 9 - 8 + 76 + 54 - 32 + 1 = 100

Can you tell me any other solution?

I make two people out of one. What am I?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?