Pretty close on all 5. Someone fancy a challenge?
<a class="postlink" href="http://www.geoguessr.com?s=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%3D" onclick="window.open(this.href);return false;">http://www.geoguessr.com?s=eyJ0b3RhbFBv ... MjVdXX0%3D</a>