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)?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

How many letters are in the alphabet?

Which of the below owl is odd one out?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

During which month do people sleep the least?

I have branches, but no fruit, trunk or leaves. What am I?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.