Meaning: something that can be easily accomplished.
Meaning: to do a share of a task.
Example: When people can "do their bit", they are helping support a larger cause. Read on
Meaning: putting a lot of effort to get a task done.
Meaning: a challenging task or difficult requirement
Meaning: to start a new job or activity without being prepared for it
Example: thrown in at the deep end Read on
Meaning: used to express that an activity or action is not fun
Example: I love having little kids around but cleaning up after them is no picnic. Read on
Meaning: a task requiring huge amounts of physical strength
Example: It will be a Herculean task to get through to the quarter-finals, but this untested team is up for the challenge. Read on