This one is not the nicest pun, I feel a bit bad about it. "Csöves" literally means someone with a pipe, or a beaker, but is often used as a slang for the homeless. "Górcső" on the other hand is an older term for "microscope". So the joke combines the two. "What do you call a homeless scientist? - "Górcsöves."
The circle of life: ice cream to the gym to ice cream to the gym, etc.. ("Fagyi" is "Ice cream" in Hungarian, and "Fogyi" is a cute way to say "Weight loss".)
- Strange... whenever I arrange a date to meet at this tree painting, they always leave me. ("Fa" is "Tree" in Hungarian and "Kép" is "Image" or "Painting/ Drawing/ Photo/ Etc.". There also a saying: "Faképnél hagyni" - Literally this means leaving somebody at a tree painting, but in practice it means leaving somebody hanging / leaving someone without a word.)