A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?

What is the largest number you can write with just 3 digits?

Solve the equation in the image by looking at the pattern closely.

Which five letter word can be added at the end of below word to form a
valid word?

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Who always enjoys poor health?

Find the last number in the series below:

voN luJ yaM raM ---

How is the moon similar to a dollar?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?