Home Quiz 3 Riddles That Can Challenge Your Brain and Exercise Your Mind Quiz 3 Riddles That Can Challenge Your Brain and Exercise Your Mind By Sophie - 03/06/2021 1.How many eggs were left? S O L U T I O N : 2. How many frogs stayed on the bridge? S O L U T I O N : 3. Can you find the hidden boy among the girls? S O L U T I O N :