What country can make you shiver?

You need to arrange three 7 and mathematical symbols to form number 1?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

Can you find out which options fits best with the missing column?

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

What does this mean?

CCCCCCC

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

What is common among 11, 69, and 88?