Short logic riddles for kids

logicmathsimpleclean

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.
73.02 %
53 votes
cleanlogic

If you have me, you want to share me. If you share me, you haven't got me. What am I?
Secret.
72.96 %
334 votes
logicscary

The person who built it sold it. The person who bought it never used it. The person who used it never saw it. What is it?
It's a coffin.
72.78 %
2084 votes