The only elements that are liquids at room temperature are bromine and mercury. Mercury freezes at -39 C. Bromine freezes at -7 C. The lowest melting element which is a solid at room temperature is Francium which melts at 27 C.
Only bromine and mercury are liquid at room temperature (20-25 degrees C). Francium, cesium, rubidium, and gallium all melt between 25 and 40 degrees C.
