The Famous Light Bulb Brain Teaser Is Seriously Puzzling – See If You’re Bright Enough To Solve It

From time to time we like to share a really tough riddle with all of you, and this one captured our attention recently.

It managed to divide everyone in our office as we argued over how to solve it, but we promise there is an answer, and it can be solved.

See if you have the mind to un-puzzle this one, then share it with a friend to challenge them.

Here’s the brain teaser:

“Mr. Bright was doing some renovations on his home when he ran into an unusual problem.

Like a lot of renovation problems, it involved his home’s faulty wiring.

In Mr. Bright’s basement, there was a set of light switches.

A note from the home’s former owner explains that the three light switches are connected to three different light bulbs in the house’s attic.

a_roesler / Pixabay

Mr. Bright can’t see which light bulb turns on in the attic when he flips a switch in the basement.

While each switch is connected to just one light bulb, all three light bulbs and switches look exactly the same.

Because Mr. Bright is getting older, he doesn’t want to walk back up and down his stairs. He will flip as many switches as he needs to, then walk upstairs just once to identify how the switches and light bulbs are connected.

To be clear, there’s no way to turn the lights on or off once Mr. Bright walks out of the basement to check on them.

And no, Mr. Bright can’t use a dimmer switch, or ask someone else to help him.

So here’s the puzzle: how can Mr. Bright identify all three switches and lights in just one trip from the basement to the attic?

Take a guess, then see if you were right on the next page.

If You Can Solve This Ancient Brain Teaser In Under A Minute, Consider Yourself A Genius

Sometimes, we come across a puzzle so creative we just have to share it with you.

It turns out this one has been confounding clever minds since the 9th century, so if you can solve it in under a minute, consider us impressed.

“Once upon a time, a boy was walking along a river and saw a man in distress.

He asked the man what was wrong, and learned he was caught in an impossible problem.

The man had gone to the market that day and bought three things: a cabbage, a goat, and a wolf.

An illustration of the problem.Wikimedia

To get home, he had to cross a small river on a boat. But his boat was so small, it could only hold him and one of his purchases.

‘Why not take them across the river one-by-one?’ the boy asked.

The man revealed two more problems:

  • If the goat is left alone with the cabbage, it will eat it.
  • If the wolf is left alone with the goat, it will eat it.

The man was in tears, worrying he would never cross the river with all three of his purchases.

The young boy sat beside the man and thought quietly.

Eureka!’ he shouted at once, ‘I know the answer!'”

Did you solve the puzzle? Check your answer on the next page!

Apparently You’re A Psychopath If You Can Correctly Solve This Riddle

The internet is filled with all sorts of tests, quizzes, zodiac analysis, riddles, and illusions that can supposedly reveal a lot about your true self. From what your favorite ice cream flavor says about your personality to how your zodiac sign can help you improve your relationship, there’s something for everyone.

However, we’ve recently come across an interesting one that you’ve probably never seen before: a riddle that can allegedly reveal whether or not you’re a psychopath.


That’s right, apparently only those who think along the lines of a psychopath can correctly answer this brainteaser, and this doesn’t necessarily mean that only those with homicidal tendencies will get this right.

According to Psychology Today, a small number of the population, about 1% to be exact, are psychopaths, and while they may not be dangerous or appear anti-social, they do lack conscience and empathy.

So without further ado, here’s the riddle:

While at her own mother’s funeral, a woman meets a guy she doesn’t know. She thinks this guy is amazing — her dream man — and is pretty sure he could be the love of her life. However, she never asked for his name or number and afterwards could not find anyone who knows who he was. A few days later the girl kills her own sister.
Question: Why did she do it?

Did you come up with an answer?

Now let’s find out if you’ve got it right…