Each fruit above is about 10-12cm across, they have inside a fibrous jelly like texture, this is the flesh you eat. They taste slightly sweet, but no strong flavours.
You can also find toddy palm juice, which is a sweet palm sugar drink made from tree sap. That is drunk warm and fresh.
Then there's toddy palm seeds, you'll see these sold in cans at your asian grocer and used as a side fruit with icecream and desserts.
Finally, toddy palm trees are one of the sources of unrefined palm sugar, the dark sugar with the complex flavours we use to produce a lot of Thai dishes.