Spray paint them all the same color. add a couple of small lumbar pillows in coordinating fun pattern (or find the pillows first and pick a color from there)! have fun and don't worry about the differences. it will be eclectic and adorable when done!

Tables and chairs do not have to match especially in a casual outdoor space. Without knowing your home's color palette or style, it's tough to give any advice. For me, I would probably spray paint the chairs black to match the table. I am a fan of black outdoor furniture, I don't do whimsy so I don't do random colorful colors. And then I would get two small pillows for the chairs and something for the table (either a medium sized plant or a lantern or hurricane vase with candle). Or you can always use the pieces separately, you don't HAVE to use them together. You could get a different table for the two chairs, and then use the table somewhere else (it's pretty small so you could use it as a plant stand within a grouping of potted plants to give some height for example).

It's not really a bistro set. Keep the chairs as is and paint the table a funky color you love

You are fine with your new "inheritance"! Leave the teak as is and it will weather thru time. Not sure what your color scheme is outside, exterior paint color, etc. but if you choose then you can paint the table to complement the surroundings....or just leave it black!

Lucky you.

Would not paint the wood. You could use a soft lint free cloth and rub in some linseed oil to protect it.

Consider adding something else to your patio that is black metal such as a pair of black metal flower pot stands: You could have two wood pieces and two or three metal pieces.

Repaint the black (or any other color) metal as needed w/Rustoleum spray paints. If you see any rust, do a bit of sanding and paint it with Rustoleum Rust Reformer first.

There is a paint (Giani) used for metal garage doors to make them appear (at least from a distance) to be wood; however, I'm not sure that would work on the table top.

Gets some bright cushions and paint table to match colour of cushion. Cushion from Amazon

Just an afterthought: If your garage door is metal, there is paint (Giani) that can make it appear to be wood (at least from a distance).