Solution:

Three hidden words are
1. Bloom
2. Garden
3. Farm

Solution:

The Bomb will explode in just 5 minutes and he can use that exit afterward.

Solution:

24 strikes - One Striker every hour

156 Strikes - Strike depends on the number of hours
(3rd hour - 3 strikes, 11th hour - 11 strikes)
Total Strikes = 2(1+2+3+4+5+6+7+8+9+10+11+12) = 156.

180 Strikes - 156 from previous + 24 (one strike every hour)

228 Strikes - 156 Strikes(Strike depends on the number of hours) + 72(24*3, one every quarter except for the 0th hour)
= 156 + 72 = 228

Hence all clocks are working fine.
24 strikes - One Striker every hour

156 Strikes - Strike depends on the number of hours
(3rd hour - 3 strikes, 11th hour - 11 strikes)
Total Strikes = 2(1+2+3+4+5+6+7+8+9+10+11+12) = 156.

180 Strikes - 156 from previous + 24 (one strike every hour)

228 Strikes - 156 Strikes(Strike depends on the number of hours) + 72(24*3, one every quarter except for the 0th hour)
= 156 + 72 = 228

Hence all clocks are working fine.

Solution:

2.

Rest all are the reflection of two girls in the mirror.

Solution:

Piece 2 is the broken piece of the bone.

Solution:

The girl was standing on the bottom ladder. Hence no injury.

Solution:

The three hidden words are

1. Cloud
2. Storm
3. Damp

Solution:

The bottom train.

The trick to solving maze problems quickly is to start drawing from the end(station in this case).

Solution:

Coffee.

The person with two a's drink coffee.
The person with two e's drink coke.
By the same logic, Armando drinks coffee.

Solution:

Eye