Misc: In 1944 First B-29 bombing raid ---------- plane lost; engine failure.?

Questions

What name is given to a fibre from the husk of a coconut, used in rope making & matting ?

What name is given to small or immature cucumbers usually grown to be pickled?

What name is given to the Friday in holy week?

What name is given to the group of animals that eat meat?

What name is given to the unit of mass that weighs about 2.2046 pounds?