conundrum
遊び心のある
block
boy
brainteaser
challenge
child
childhood
collect
concentration
construct
creative
depression
detail
development
difficult
education
educational
establishing
game
handle
head
heap
his
house
indoor
kid
learn
leisure
lot
one
people
person
play
problem
puzzles
room
shape
sitting
skill
solve
table
task
teaser
teen
teenager
tilting
tired
toes
toy