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

What does below rebus means ?

what one word does the below rebus identifies?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

I have branches, but no fruit, trunk or leaves. What am I?

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?