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Workings

Hint
Try working backwards.

Answer
148.

Reasoning
A number that is divisible by 3 has digits that add up to a number that is also divisible by 3 (for example, 123 is divisible by 3).

So we can look for the first number where 4 + 4 + 4 + 4 + 4 + … is divisible by 3, which is 4 + 4 + 4, and 444 ÷ 3 = 148.

Alternative Reasoning
Let's try the possible answers in order:

  4 ÷ 3 = 1.3333
 44 ÷ 3 = 14.6666
444 ÷ 3 = 148

Double-Checking
148 x 3 = 444.

Workings

Hint
Think about the number of legs.

Answer
There are 7 chickens, 28 mice and 280 ants.

Reasoning
For every chicken (2 legs) we have 4 mice (16 legs) and 40 ants (240 legs) = 258 legs.

So we can divide the total number of legs by 258, giving 1,806 ÷ 258 = 7 (chickens).

Workings

Hint
The first word ends with the letter A.

Answers
pnd    = panda frrt   = ferret s ln   = sea lion hdghg  = hedgehog chth   = cheetah tdpl   = tadpole ttr    = otter plr br = polar bear lprd   = leopard grff   = giraffe

Workings

Hints
The first letters of the words are: R, S, D, E, C, W, Z, A, M, D.

Answers
Rabbit Squirrel Donkey Elephant Cat Weasel Zebra Aardvark Mouse Dog