How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: Its behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

What has a bottom at the top?

Can you find out the number that should replace the question mark with a valid reason?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

If we tell you that there is a relation between the numbers and letters in the given figure, can you analyze it and find the missing letter in the last box?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.