Riddle no. 3

Answer:

We have 3 equations;

Lion + Elephant = 6

Hippo + Lion = 10

Elephant + Hippo = 8

Adding all 3 of them we get;

2(lion) + 2(elephant) + 2(hippo) = 24

Solving it we get;

2(lion + elephant + hippo) = 24

(lion + elephant + hippo) = 24/2 = 12

Therefore;

Lion + Elephant + Hippo = 12