Which tests are there?
There's an IQ test and 17 self-report questionnaires. You can see them all on the tests page.
The questionnaires
The questionnaires (the personality test, the emotional intelligence test, the career interest test, the attachment style test, the love style test, the work style test, the nine-type personality test, the DISC personality test, the strengths test, the archetype test, the highly sensitive person test, the intimacy style test, the ADHD traits test, the BPD traits test, the narcissistic traits test, the political identity test and the faith and spirituality test) ask how much statements fit you. They're for self-reflection, not clinical, diagnostic or hiring assessments.