logicshort1
11
21
1211
111221
312211
What is the next number in the sequence?

The next number it: 13112221. Each number describes the previous number. Starting with 1, the second line describes it 11 (one 1). Then the third line describes 11 as 21 (two 1’s). Then the fourth line describes 21 as 1211 (one 2, one 1). This is the pattern.

## Similar riddles

See also best riddles or new riddles.

logicshortWhat happened when wheel was invented?

It caused a revolution.

logicshortPeter celebrated his birthday on one day, and two days later his older twin brother, Paul, celebrated his birthday. How could this be?

When the mother of the twins went into labour, she was travelling by boat. The older twin, Paul, was born first, barely on March 1st. The boat then crossed a time zone,

logicmathshortDean 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

logicshortA man hijacks an aeroplane transporting both passengers and valuable cargo. After taking the cargo, the man demands two parachutes, puts one of them on, and jumps, leaving the other behind. Why did he want two?

If the officials thought he was jumping with a hostage, they would never risk giving him a faulty parachute.

logicmathshortThe 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.

logicmathshortUsing eight eights and addition only, can you make 1000?

888 + 88 + 8 + 8 + 8 = 1000

logicshortA man was driving a truck at 60 mph. He did not have his headlights on and the moon was not up. Yet he did not hit the woman who crossed the road. How?

He was driving the truck during daytime.

cleanlogicshortWhat word becomes shorter when you add two letters to it?

Short.

logicmathshortFind three positive whole numbers that have the same answer added together or when multiplied together.

1,2, & 3.
1 x 2 x 3 = 6 and 1 + 2 + 3 = 6

logicmathshortA clock chimes 5 times in 4 seconds. How many times will it chime in 10 seconds?

11 times. It chimes at zero and then once every second for 10 seconds.