Skip to main content

Want to look for something?

Brainteasers



Brainteasers keep the mind well-greased.

So here's a riddle you may like: 

Drill a hole through a sphere such that the height of what remains of the sphere is 10cm. What is its remaining volume?
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.


Answer:
The volume of a sphere is (4/3)π r³

 Assume any values of the sphere's radius and the hole's radius that are consistent with a 10 cm wall of the hole. So what if we assume the hole is infinitesimally small, i.e. zero?  That surely works, and the answer is simple: the volume of a 10 cm diameter sphere! Which is around 524 cm cube. 


Note: I found this randomly in a magazine today and spent 5 minutes remembering the volume of sphere formula, but it was all worth it in the end.

Too easy, huh?

Labels:

Popular posts from this blog

Maslow's Hierarchy of Needs - In the Context of Workforce Management and Marriages

Abraham Maslow, a psychologist, created the theory of Maslow's Hierarchy of Needs to assist business owners in maintaining elevated levels of employee engagement. The theory proposes that there are five essential needs that drive human motivation, arranged in a hierarchical order. Maslow's theory states that people first attend to their basic needs, then progress to higher level needs only once the lower level of needs are met, leading to a sense of fulfillment.  In marketing, the hierarchy is used to market to specific groups of people based on similar needs. However, it can also be applied to other areas - to ascertain employees engagement and arguably, even in marriages! Maslow's Hierarchy of Needs in the Workplace : Many companies use this hierarchy in the workplace to determine how to motivate employees and meet their needs.  1. Physiological needs Survival needs such as coffee, clean water, comfortable working environment, breaks to eat, access to a restro...
Post a Comment
Read more

Why I Decided To Move Halfway Across The World To Canada

"Can you go halfway around the world, and live in a cold city with freezing winters? Can you leave your friends and family? Wouldn't you be lonely?" -Jumpa Lahiri, The Namesake This is the exact question I asked myself, as I saw my invitation letter from the Government of Canada with the following words: "We are pleased to invite you to apply for permanent residence under the Federal Skilled Workers". This is a highly competitive score-based  immigration system for experienced professionals valued internationally for Canada's  social benefits, healthcare, education, and a high quality of life. I usually never second-guess, but in that moment, the prospect of quitting a well-paying reseach & consulting job in India and the proximity to my people to start life from square one barely held any appeal.  More so, because I love India.  The love, the education, the principles, the family values, the work diligence, the peace-loving outlook, the  experiences, ...
Post a Comment
Read more

Deloitte's $440K AI-Generated Report: A Cautionary Tale for Business

[30 days, 30 Problems - In this series of one posting a day, I will investigate the economic impacts that unfold when policy meets technology.] When policy meets technology without oversight, the consequences can be both reputational and financial. Deloitte’s partial refund to the Australian government after it was revealed that parts of a $440,000 report were generated by AI serves as a cautionary case for organizations using generative tools in high-stakes policy analysis. When in  July 2025,  Deloitte delivered a report evaluating a welfare compliance IT system was for the Australian Department of Employment and Workplace Relations (DEWR), it was  found to include AI-generated text containing fabricated citations and factual inaccuracies . After an internal investigation, Deloitte agreed to refund a portion of the $440,000 contract value , acknowledging the inappropriate and undisclosed use of OpenAI’s GPT-4 model through Microsoft’s Azure platform. The Guardian rep...
Post a Comment
Read more

Contact Form

Name

Email *

Message *