tankearbete (n) (n) (problem) | brainwork (n) (problem) |
tankearbete (n) (n) (intelligens) | mental training (n) (intelligens) |
tankearbete (n) (n) (problem) | thinking (n) (problem) |
tankearbete (n) (n) (intelligens) | intellectual training (n) (intelligens) |
tankearbete (n) (n) (intelligens) | mental exercise (n) (intelligens) |