X6 and Z4 carmaker |
18 |

XXIV hours |
10 |

Xylophone-like instruments |
26 |

XII x VIII + XI x V |
19 |

Xis' predecessors |
17 |

X, on some campuses |
19 |

X, to Greeks |
12 |

Xena: Warrior Princess" antagonist |
34 |

X Games gear |
12 |

Xanax user's problem |
20 |

x + y = z" math branch |
22 |

X overseas |
10 |

XXV x XXVI |
10 |

X Games accomplishments |
23 |

Xzibit collaborator, familiarly |
31 |

x + 0 = x, e.g. |
15 |

X, on campuses |
14 |

Xena's steed |
12 |

X-Men" hero who can emit energy beams from his eyes |
51 |

Xavier Cugat's ex-wife Lane |
27 |

Xs |
2 |

Xbox's foil, in a CeeLo Green lyric |
35 |

Xavier Cugat's ex-wife |
22 |

XXIII x XXIV |
12 |

X5 automaker |
12 |

Xenophobe's bugaboo |
19 |

Xis' predecers |
14 |

Xavier University locale |
24 |

XVII x LIII |
11 |

X's, in Greece |
14 |

X, to frat men |
14 |

XC x XXV |
8 |

Xavier's former spouse |
22 |

X and Y on a graph |
18 |

Xbox insert |
11 |

Xmas, for Jimmy Buffett |
23 |

Xmas song: "Ave ___ |
19 |

Xylophone look-alikes |
21 |

X contemporary |
14 |

X box? |
6 |

XXVI quadrupled |
15 |

Xbox One, for one |
17 |

X, to Aeschylus |
15 |

XXIV x XIX |
10 |

X - VII |
7 |

XV ÷ V |
7 |

X lookalike |
11 |

X, to Hippocrates |
17 |

Xenophon classic |
16 |

Xerox, e.g. |
11 |

XXX, to the Greeks |
18 |

XXXVIII x V |
11 |

Xenophobes' fear |
16 |

XXIII times XXIV |
16 |

XXXVIII x VIII |
14 |

Xena's daughter |
15 |

X'es |
4 |

X, on fraternity row |
20 |

XXVI Olympiad site |
18 |

XLI |
3 |

X3 and Z4 maker |
15 |

XXX / X |
7 |

XY |
2 |

X'd |
3 |

XII years after Columbus's first voyage |
39 |

Xenophobe's dread |
17 |

XXX x X |
7 |

XXX, in a way |
13 |

X X X |
5 |

X, e.g. |
7 |

X-ray vision deterrent |
22 |

X on a frat house |
17 |

XCII x VI |
9 |

Xmas time: Abbr. |
16 |

X, in Roma |
10 |

X, in old Greece |
16 |

X-ray vision blocker |
20 |

X out |
5 |

Xmas sounds |
11 |

Xeric |
5 |

X-ed |
4 |

XV |
2 |

XIX octupled |
12 |

X Games racers |
14 |

X Y & ___" (Elizabeth Taylor movie) |
35 |

Xbox 360 insert |
15 |

X-files subjects, for short |
27 |

x or y |
6 |

X and Y, maybe |
14 |

X, at times |
11 |

Xhosa and Zulu are among its official langs. |
44 |

Xmastime |
8 |

Xylophone cousins |
17 |

Xmas period |
11 |

X-Men: ___ of Future Past |
25 |

XXXV x XXVI |
11 |

X-Men" actress Paquin |
21 |

X Games vehicle |
15 |

XXXII x XXX |
11 |

X-Games telecaster |
18 |