10202

Each term in the series is obtained by adding 1 to the square of the preceding term. So, missing term = (101)^2 = 10201 + 1 = 10202

Fart.

Cipher.

Shoe.

3/6 = 1/2 = 0.5

# Sides with even number / # Total sides

25, 27.

There are two alternate sequences: start at 10 and add 3, 5, 7; start at 50 and deduct 5, 7, 9.

Zebra.

15 and 11

1 + 2 + 3 + 4 = 10, then insert next two numbers 11, 12 and add digits 1 + 1 + 1 + 2 = 5. Insert next two numbers 6, 7 and add digits 6 + 7 = 13. Insert next two numbers 14, 15 and add digits 1 + 4 + 1 + 5 = 11.

Doctor.

Elevator.

4600

12 = 552/x * 100 x= 552/12 * 100 = 4600

Wall.