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Brain Teasers and Logic Puzzles
Test your IQ in this category filled with brain teasers, puzzles and riddles.
4,848 Questions
Do all mammals have a common ancestor?
Not actually. There were several different marine reptiles that had mammalian characteristics, notably the group known as pelycosaurs. The earliest mammals appeared early in the Age of Reptiles (Mesozoic Era), but were uniformly small in size. The group called synapsids took an evolutionary path to mammals while the sauropsids became today's reptiles and birds.
Is a jar of jelly beans heterogeneous?
Yes, the jelly beans aren't dissolved and you cannot see the separate parts.
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Slivers in Magic: The Gathering are represented by a symbol depicting a curved snake-like creature. The symbol is a central part of the card design for Sliver cards, emphasizing their interconnected and hive-minded nature.
What 3 animal names are found in tall elephant or apeman?
There is more than three: "Tall Elephant": Eleplant Ape Hen Ant Peahen Eel Or without rearranging the letters: ant, ape, elephant
How long 3 pills had been taken if 1 pill must be taken every 30 minutes?
If 1 pill must be taken every 30 minutes, then 3 pills would have been taken in the span of 1 hour and 30 minutes.
What letters on a bolood tests represent bilirubin count?
The letters used to represent bilirubin count on a blood test are usually "T Bili" for total bilirubin and "D Bili" for direct bilirubin. Total bilirubin includes both direct and indirect bilirubin, while direct bilirubin specifically measures the amount that is conjugated and ready to be cleared by the liver.
How many liters in 10.5 gallons?
10.5 US gallons = 39.75 liters.
10.5 Imperial gallons = 47.73 liters. See related link.
What is the evaporating point of diamond?
i think it is 2400c but I'm not sure if that is just for carbon
No smoke on an electric train (unless its on fire).
You turn on two switches wait 5 min. and turn one of the switches off! go in the next room the cold one belongs to the switch you never turned on..the warm one the switch you only left on 5 min and the lite one to the switch that is turned on! you switch on one switch for a few minutes, one for ages, and dont turn the other one on at all. you go through to the other room, the bulb that is warm is operated by the first switch, the roasting hot bulb (that would burn your hand) is operated by the second switch, and the cold bulb is operated by the third switch.
If you could fold a piece of paper in half 50 times how thick would it be?
In theory, that peice of paper would be thick enough to accomplish the distance from earth to the moon.
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as i said...in theory. but hypothetically
it would just be a normal piece of paper that is 0.02cm thick.
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Answer #2:
The paper would still be the same thickness as it was before you folded it.
But you're probably asking for the thickness of the big folded wad. Naturally,
that depends on how thick the paper is before you start folding it.
You haven't mentioned what kind of paper you'd like to use, so I can't actually
calculate a thickness. All I can tell you is that whatever the thickness of the
paper is, the final folded form will be 250 = 1,125,899,907,000,000 times as thick
(rounded to the nearest million times).
20-lb bond, widely used for home printers, varies from about 0.0038 to 0.0045 inch thick. If I use 0.004 inch for convenience, and multiply it by the rounded number above, I get
(0.004 in) x 250 = 4.5 x 1012 in = 3.8 x 1011 ft = 71 million miles, rounded,
or just under 298 times the distance to the moon.
(That's if you're careful to squeeze out all the air between the layers after you fold it.)
How you freeze a corona just by hitting the bottom?
When you lower the temperature of a bottled beverage(a beer) the liquid cannot become a solid because there isn;t a possibility for crystals to form. once you tap it, the co2 escapes and creates a chance.
False. When a hypothesis is shown to be incorrect, it does not necessarily mean the experiment is a failure. It provides valuable information and contributes to the scientific process by ruling out one possible explanation, allowing for further refinement of the hypothesis.
What happened in 1961 and will not happen again until 6009?
The year reads the same when rotated 180 degrees. Except when typed the "1" wouldn't be the same because of the line at the bottom of the "1" so technically nothing about them are probably going to be the same.
Tottenham winning the league.
Which are best H S C schools in Surat?
Some of the top HSC schools in Surat include Auro University, Delia School of Canada, and Udgam School for Children. However, the best school for your child will depend on factors like their interests, learning style, and extracurricular activities. It's recommended to visit each school, speak with teachers and students, and consider their academic programs before making a decision.
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How do mind reading games work?
Mind reading games typically involve a series of cues, prompts, or questions that are designed to lead participants to choose a specific option or reveal personal information. The game facilitator may use techniques like cold reading, psychological manipulation, or subtle prompting to create the illusion of mind reading. Ultimately, mind reading games rely on the power of suggestion and the participant's willingness to believe in the illusion of mind reading.
How many words are made in the word Ulyanovsk?
an, lay, us son, on, ask, say, van, only, nova, navy, oak, oaks, soy, sun, etc.
White. You're at the North pole.
Since you're at the North pole, all walls face South because you can't get anymore North.
Telepathy involves communicating through thoughts rather than speech. To enhance your telepathic abilities, focus on developing mindfulness, empathy, and clarity of intention. Practice with a partner by sending and receiving simple messages mentally.
What is the scientific name for a water bug?
The scientific name for a water bug is typically in the family of insects known as Hemiptera. Some common species of water bugs include Belostomatidae (giant water bugs) and Notonectidae (backswimmers).
What gets bigger the more you take away from it?
A hole.
A hole.
A bank overdraft gets bigger as you withdraw more funds from it.
John McCain's left cheek.
Yup. Hole is the 'it'.
And what about right cheek?
How old do you have to be to join lumosity?
You must be 18 years of age or older to join the brain-teaser website 'Lumosity'.
