I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

O_er_t_o_

Complete the missing letters of the given word.

Sharpest vision can find the lamp in the desert. Are you one of them? Test your observation skills now!

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

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?

How many letters are in the alphabet?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?