Riddles, one at a time

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.

Crack the Lock

Crack the Lock

Which 3-digit code opens the lock?

Picture · Hard Challenge link
Answer

738

3 sits in the middle, 8 stays last, 7 goes first.

Full explanation on the blog

Turn the Wheel

Which word is hidden in the code?

Video · Hard Challenge link
Answer

CLOUD

Inner S, B, E, K, T sit under outer C, L, O, U, D.

A Quarter Turn

Which card do you get?

Video · Medium Challenge link
Answer

C

Clockwise, the left column becomes the top row. Card C.

Lamp Code: Deduce the Lamps

What number does the last row show?

Video · Expert Challenge link
Answer

14

Lamps worth 8, 4, 2, 1 fit every row: 2 + 1 = 3, 4 + 1 = 5, 8 + 1 = 9, 4 + 2 = 6. So 8 + 4 + 2 = 14.

Lemon, Tea and Dates

Lemon, Tea and Dates

What is the answer to the last line?

Picture · Medium Challenge link
Answer

25

Lemon 10, cup 5, date 2. Multiply first: 5 + 20 = 25.

Challenge link