Name The Year: Shirley Bassey (in Wales), born.?

Questions

A horse can sleep ----------?

A ---------- focuses its eye by changing the angle of its head, not by changing the shape of the lens of the eye, as humans do.?

A horseshoe for a full-grown Clydesdale measures more that ---------- inches from end to end and weighs about five pounds. It is more than two times as long and four times as heavy as a shoe worn by a riding horse.?

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Adult electric eels 5ft to 7ft long produce enough electricity -- 600 volts -- to stun a ----------?