1) The smallest unit of time is known as a zeptosecond, which is equal to one trillionth of one billionth of a second.

2) Insurance premiums are the payments made by policyholders to insurance companies in exchange for coverage.

3) Jennifer Lawrence is an American actress known for her roles in films such as "The Hunger Games" series, "Silver Linings Playbook," and "Joy." She has won an Academy Award and several Golden Globe Awards, establishing herself as one of the leading actresses of her generation.

4) Online banking and mobile banking have become increasingly popular, providing convenient access to banking services through digital platforms.