Flashcard

What are the chances of a coin landing heads up after it has landed heads up 10 times in a row?

There is a 50/50 chance of each toss being either heads or tails. The previous toss does not impact the next toss.

What number multiplied by three is no larger than two times that same number?

0

How can you add eight 8's to get the number 1000?

888 + 88 + 8 + 8 + 8 = 1000

How many children does Mr. Smith have if he has 4 daughters, and each has a brother?

5 (4 daughters + 1 brother)

How do you go from ninety-eight to 720 using just one letter?

Add an 'x' between 'ninety' and 'eight'. Ninety x Eight = 720.

In a classroom of 12 kids, if 6 are wearing socks, 4 wearing shoes, and 3 wearing both, how many are barefoot?

5 kids are bare feet.

If a patch of lily pads doubles in size every day and takes 48 days to cover the lake, how many days to cover half the lake?

It would take 47 days to cover half the lake.

How many days are there in 4 years considering one leap year?

1461 days (365 x 4 + 1 for leap year).

What number is represented by the riddle: 'Tilt me around, and I am everything. Cut me in half, I am nothing.'?

The answer is 8, as it resembles the infinity symbol when turned on its side and when cut in half becomes 2 zeros