Please help me with these problems: 1. In how many distinct ways can the letters of the word ENDLESSNESS be arranged?

2. A jar contains 5 yellow and 3 green jelly beans. How many ways can 4 jelly beans be picked so that at least 2 are green?

3. Draw the graph G(V, E) where V = {a, b, c, d, e, f} and E = {ab, ad, bc, cd, cf, de, df}

4. Draw a graph that is Eulerian but not Hamiltonian.