Riddles, one at a time

Mirror Clock: 13:31

How many minutes until the clock shows the next mirror time?

Video · Hard Challenge link
Answer

70 minutes

The next mirror time is 14:41, 70 minutes later.

What comes next? 2, 6, 12, 20, 30, ?

Growing Gaps

Text · Easy Challenge link
Answer

42

The gaps grow by two each time: +4, +6, +8, +10, then +12. 30 + 12 = 42.

Word Ladder: Tool to Book

Which word fills the gap?

Video · Easy Challenge link
Answer

COOK

COOL to COOK changes L to K; COOK to HOOK changes C to H.

Twin Panels

Twin Panels

How many TILES were changed?

Picture · Medium Challenge link
Answer

6

Dot, turn, colour, corners, shape and ring.

What Am I? Roads Without Cars

Which object fits all three clues?

Video · Easy Challenge link
Answer

Map

Its roads have no cars, its rivers have no water, and it folds into a pocket: A.

How Many Routes: 3 × 2 Grid

Moving only right or up, how many different routes lead from start to the gem?

Video · Medium Challenge link
Answer

10

The two corners next to the gem can be reached in 6 and 4 ways: 6 + 4 = 10.

Challenge link