Problem: Add spaces: Numberofstrokesperflash3-5(About15to20percentoflightningflashesarecomposedofasinglestroke).

Spaces added: Number of strokes per flash 3-5 (About 15 to 20 percent of lightning flashes are composed of a single stroke).

Problem: Add spaces: Translationofthewebsite-DeathValleyRacer

Spaces added: Translation of the website - Death Valley Racer

Problem: Add spaces: MicroRacers2Thisisaracingcarsgame.Doyoulikespeed?

Spaces added: Micro Racers 2 This is a racing cars game. Do you like speed?

Problem: Add spaces: Havanaischaotic,fulloflife,agoodplacetolearnfirst-handontheislandtoday.

Spaces added:
Havana is chaotic, full of life, a good place to learn first-hand on the island today.