I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Whats the next number in the below number sequence pattern.

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

What is the last thing you take off before bed?

Why do you find that most of the buildings are deprived of the 13th floor?

Solve below rebus puzzle?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

In the following series, a set of numbers is progressing with a particular pattern. Can you deduce that pattern and find the missing set?

(2 + 6), (21 + 6), (58 + 6), (119 + 6), ___

Why is the Hole below a Lock?