## The largest number you can write

What is the largest number you can write with just 3 digits ?

999.

What is the largest number you can write with just 3 digits ?

999.

See also best riddles or new riddles.

How many times do a clock's hands overlap in a day ?

22 times.
am
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
pm
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55

Divide 110 into two parts so that one will be 150 percent of the other. What are the 2 numbers?

44 and 66.

Can you find four consecutive prime numbers that add up to 220?

47 + 53 + 59 + 61 = 220

Take 9 from 6, 10 from 9, 50 from 40 and leave 6. How is it possible?

SIX - 9 (IX) = S
9 (IX) - 10 (X) = I
40 (XL) - 50 (L) = X

Can you arrange four 9's and use of atmost 2 math symbols, make the total be 100?

99 / .99

Think of a number. Double it. Add ten. Half it. Take away the number you started with. What is your number?

Your number is 5.

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.
How many marbles are in the box ?

There are 3 marbles (1 blue, 1 green, and 1 red).

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

100. Looks hard? Don't worry, just work it backwards and you'll find it very easy.

Dean Sam and Castiel are three brothers.
Interestingly their current age is prime.
What's more interesting that difference between their ages is also prime.
How old are they?

Sam : 2
Dean : 5
Castiel : 7
Age diff
7 - 2 = '5' is prime
7 - 5 = '2' is prime
5 - 2 = '3' is prime

The digits 0-9(0,1,2,3,4,5,6,7,8,9) can be rearranged into 3628800 distinct 10 digits numbers.
How many of these numbers are prime?

None. The sum of numbers from 0-9(0,1,2,3,4,5,6,7,8,9) is 45 and therefore can be divisible by 3 and 9.