BRAIN TEASERS
The Most Difficult Tasks (page 695)

The Most Difficult Tasks (page 695)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 6941 to 6950.
Register with your Google Account and start collecting points.
Check your ranking on list.
[link]

What can you put in a wood b...

What can you put in a wood box that will make it lighter?
Correct answers: 73
The first user who solved this task is Snezana Milanovic.
CHECK ANSWER
#brainteasers #riddles
[link]

Replace the question marks w...

Replace the question marks with a numbers and calculate product these numbers.
Correct answers: 73
The first user who solved this task is Allen Wager.
CHECK ANSWER
#brainteasers #math
[link]

I can be cracked, I can be mad...

I can be cracked, I can be made. I can be told, I can be played. What am I?
Correct answers: 73
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #riddles

Baseball boy

A little boy walked up to homeplate in an empty baseball field, with his bat and ball in hand.

As he threw the ball up in the air, he proclaimed, "I am the best ball player ever!" He swung with all his might, but missed.

He did the same thing and missed again.

He picked up the ball, tossed it up one more time, said "I am the best ball player in the world!" Then he swung and missed again.

"Wow!" he said. "What a pitcher!"

Jokes of the day - Daily updated jokes. New jokes every day.
[link]

Remove 4 letters from this seq...

Remove 4 letters from this sequence (BANKIEQNQOG) to reveal a familiar English word.
Correct answers: 73
The first user who solved this task is On On Lunarbasil.
CHECK ANSWER
#brainteasers #wordpuzzles
[link]

Find number abc

If 3b2a0 + a86ac = b7b0c find number abc. Multiple solutions may exist.
Correct answers: 73
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math
[link]

Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 73
The first user who solved this task is On On Lunarbasil.
CHECK ANSWER
#brainteasers #mastermind
[link]

Find number abc

If c2233 - 1433a = 3ba9c find number abc. Multiple solutions may exist.
Correct answers: 73
The first user who solved this task is Eugenio G. F. de Kereki.
CHECK ANSWER
#brainteasers #math
[link]

Find number abc

If 7a421 - 57acc = 1b7bb find number abc. Multiple solutions may exist.
Correct answers: 73
The first user who solved this task is Donya Sayah30.
CHECK ANSWER
#brainteasers #math
[link]

Find number abc

If 74ca5 - 4aab2 = a157a find number abc. Multiple solutions may exist.
Correct answers: 73
The first user who solved this task is Donya Sayah30.
CHECK ANSWER
#brainteasers #math
[link]

How many balls are there?

How many balls are there?
Correct answers: 73
The first user who solved this task is Jasmina Atarac-Pantelic.
CHECK ANSWER
#brainteasers #math #riddles
PREVIOUS PAGE
NEXT PAGE
Follow Brain Teasers on social networks
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Last Correct Answer

Top 10 Users (1174)

1. H Tav
5861
2. c. raj.
5777
3. Nasrin 24 T
5731
4. Fazil Hashim
5718
5. Thinh Ddh
5557
6. Alfa Omega
4681
7. Djordje Timotijevic
4549
8. Mita Kojd
4525
9. Jakubovski Vladimir
4443
10. Chandu Rajyaguru
4419
See full ranking list

Iron lung

In 1928, the Iron Lung was used by its first patient, a young girl at the Children's Hospital in Boston. It was an artificial respirator that enabled her to breathe despite being paralyzed by polio. This negative pressure ventilator, invented by a young Harvard doctor, Philip Drinker, was the first widely used device of its kind. From the neck down, the patient's body lay in a sealed galvanized iron box. The 3 x 7 ft, 700-lb apparatus was powered by two household vacuum cleaners. As air was pumped out of the metal box, the patient's lungs drew in air, which was expelled as the air pump cycle next increased pressure, in a cycle to mimic a normal breathing rate.«
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.