1. A3, B4, C1, D5, E2, F7, G10, H6, I8,  J9

2. Cube D

3. A mirror

4. MARGE LETS NORAH SEE SHARON’S TELEGRAM. NO MISSES ORDERED ROSES, SIMON.

5. 10 triangles

6. a. Reagan   b. Lincoln  c. Roosevelt  d. Johnson  e. Eisenhower   f. Nixon

7. six teams

8. 45 pencils   7 jars

9. Very likely

Almost everybody in a normal human population has two arms.

There are probably no people with more than two arms

There are likely to be a very small number of people with one or no arms for whatever reason.

Therefore, the average number of arms in a normal human population is very slightly less than two. 

It’s very likely that the next person you meet will have two arms.

10.