61.   Even the normally routine matter of getting directions presents a challenge.

62.   Five-on-five, the Stars presented little challenge.

63.   Fasting in the public schools often presents challenges for Muslim students.

64.   For both parties the focus on these voting blocs presents challenges.

65.   For a company overseeing index funds, however, explaining this uncharacteristic lack of performance presents a challenge.

66.   For a politician who was sometimes criticized at New York City Hall for representing only his gay constituents, the new post presents many challenges.

67.   Foreign travel presents special challenges to Internet users, because of the wide variations in telephone services they are likely to encounter.

68.   For any coaching choice, such timing presents a challenge.

69.   Grayhawk presents challenges to prosecutors trying to base a criminal case on their findings.

70.   He presents challenges.