Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

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

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Find the missing letter in the last circle logically in the given below picture.

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?