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

My location can be determined by the below rebus.
So where am i ?

What are the 50th, 63rd and 100th numbers in the sequence below?
4, 5, 8, 8, 9, 9, 12, 13, 13, 13, 17, 18, ...

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

There’s a girl who has a large family. She has an equal amount of brothers and sisters, but each brother only has half as many brothers and sisters. What’s the correct amount of brothers and sisters?

What is wrong in the below Picture?

What is harder to catch the faster you run?

If 2 workers can complete painting 2 walls in exactly 2 hours.

How many workers would be needed to paint 18 walls in 6 hours?

Can you count the number of blocks in the picture below?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.