John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"
While Bella does not know the answer, do you ?
Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?
f you were running a race, and you passed the person in 2nd place, what place would you be in now?
Our product and our sum always give the same answer. Who are we?
Who is generally closer to the kids, mom or dad?
(it's a funny riddle)
You knock a Table over in the library, and suddenly 20 eyes are looking at you.
Using four sevens (7) and a one (1) create the number 100. Except for the five numerals, you can use the usual mathematical operations (+, -, x, :), root and brackets ()
Replace the question mark with the correct number below.
There is a unique number which when multiplied by any number from 1 to 6, we will get the new number that contains the same digits only.
Can you find that number?
Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.
Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?
In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.
