Iodine jokes

My sister thinks she's so smart. She said, "Onions are the only food that makes you cry." So I threw a coconut at her.

My sister thinks she's so smart, she said onions are the only food that makes you cry.

So I threw a coconut at her.

Looks like I lost an electron, I should keep a better ion them.

If the formula of water is H2O, then what is the formula of ice?

H2O cubed.

What has an N, an I, two Gs, an E, and an R?

Ginger!