Puzzle 20

Female formal wear for the big school dance.

Gadget to remove the lid on a tin.

Stick at, carry on trying.

Ideal partners, with a deep connection.

What a Wonderful World's Louis __.

Approximate number with three zeroes, above 2000.

Ceramic material used in china or dolls.

Submarine observation device.

Evel Knievel was a famous example of one.

Meet potential partners in double-quick time.

Time gone by, when kids think adults grew up.