How are thoughts produced and what are they made of?
Justina Saladyte,17, Lithuania

Why isn't life based only on RNA?
Eva Vojáčková, 17, Czech Republic

What is the molecular origin of intuition?
Silvia Hnátová, 16 Slovakia

How can we imagine something that we have never seen or felt?
Gintė Petrulionytė,12, Lithuania

How is it possible for a simple cell to grow into a complex organism with many kinds of differentiated cells?
Catarina Correia,15, Portugal

Does a cell control its atoms or is it the interaction of the atoms that control the cell?
Armin Mohammadi, 15, Canada

Why do living organisms get old?
Iraklis Gkritsis, 16, Greece

How do we represent numbers in our mind and how do we count with them?
Jan Pulmann, 16, Slovakia

Why is it that when you pour sugar onto strawberries, they release their juice?
George Utsin, 12, Canada

How does the brain know which neurotransmitters map to which sensations, if it has never seen that sensation before?
Edward Godfrey, 16, United Kingdom