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

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

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

What number divided by 4 is the same as that number minus 4?

What do you think with the below Picture ?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

You need to arrange three 7 and mathematical symbols to form number 1?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

There are three boxes of different sizes with three cupcakes inside each of the boxes in Christina's kitchen. At night her daughter wakes up and goes to the kitchen. She opens a box and eats all three cakes.

But in the morning Christina finds out that each box still had three cupcakes. How?

what does the below rebus means?