Misc: What is the deciding qualification of a true cockney?

Questions

In Milwaukee during the 1900s, ______ horses in the city left an estimated 133 tons of manure and urine on the streets per year?

In Milwaukee during the 1900s, 12,500 horses in the city left an estimated ____ tons of manure and urine on the streets per year?

Sharks and rays are the only animals known to man that cannot succumb to cancer. Scientists believe this is related to the fact that they have no bone - only?

The duckbill platypus of Australia can store up to _____ worms in its large cheek pouches?

There are more than ____ species of finches throughout the world?