3. Guinea-Bissau
Average IQ: 67
Change in Education Index: 0%
Guinea-Bissau and Saint Kitts and Nevis have the exact same IQ, and both have shown no improvement in education index over the years.

Pixabay/Public Domain
Average IQ: 67
Change in Education Index: 0%
Guinea-Bissau and Saint Kitts and Nevis have the exact same IQ, and both have shown no improvement in education index over the years.
Pixabay/Public Domain