Exotermic:
Burning wood:because the fire that is produce by the wood is throwing off energy from the wood
Striking a match to light it:because the energy that is inside it is going out in the form of fire
Exploding dinamit:it give off energy when it react with oxygen to burn in a high temperature

In my opinion all this need oxygen to react ( something in common )

Endothermic reaction and exotermic reaction 

¿Why both ?

Because baking a bread has endothermic energy when it recept the heat and it do exotermic energy when it is expanding in mass