Can you convert the number zero(0) into a positive number using just one mathematical operator ?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

What has 13 hearts but no other organs?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

Who can jump higher than a Mountain?

During an interview, the interviewer ordered hot coffee for the candidate to relieve the stress. The coffee was kept before him. After a minute, the interviewer asked him, 'What is before you?' He replied 'Tea'.

The candidate was selected immediately. Why?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

Before Balboa discovered the Pacific Ocean, which was the largest ocean before that?

There is a five-letter word which has 3 consonants(all are same) and 2 different vowels.
Also, something wrong is associated with the word.

Can you name it?

We can be boring,Or interesting.
We can be long,Or short.
We can have pictures,Or just words.
Many love us,But many also hate us.
What are we?