Our panel of 90 professional philosophers has responded to

82
 questions about 
Law
247
 questions about 
Language
64
 questions about 
Perception
54
 questions about 
Truth
187
 questions about 
Science
30
 questions about 
Space
248
 questions about 
Knowledge
26
 questions about 
Gender
21
 questions about 
Suicide
72
 questions about 
Beauty
347
 questions about 
Religion
141
 questions about 
Freedom
100
 questions about 
Art
1
 questions about 
Culture
21
 questions about 
History
30
 questions about 
Music
74
 questions about 
Identity
66
 questions about 
Business
533
 questions about 
Philosophy
102
 questions about 
Animals
34
 questions about 
Race
99
 questions about 
Biology
30
 questions about 
Sport
317
 questions about 
Logic
124
 questions about 
Existence
109
 questions about 
Children
89
 questions about 
Time
69
 questions about 
Emotion
42
 questions about 
Color
74
 questions about 
Physics
51
 questions about 
Punishment
5
 questions about 
Euthanasia
145
 questions about 
Sex
50
 questions about 
Medicine
58
 questions about 
Abortion
63
 questions about 
Happiness
65
 questions about 
Feminism
71
 questions about 
Death
223
 questions about 
Justice
191
 questions about 
Value
122
 questions about 
Love
1169
 questions about 
Ethics
118
 questions about 
Profession
261
 questions about 
Mind
2
 questions about 
Action
35
 questions about 
Literature
45
 questions about 
War
202
 questions about 
Education

QUESTION OF THE DAY

In the light of the current state in philosophy, do skeptics still get an upper hand? Can we really know anything with certainty?

I'm going to refer you to two websites. At the PhilPapers Survey, you'll discover that only 4.8% of "target faculty" said that they accept or lean toward skepticism. Among specialists in epistemology (the theory of knowledge), that figure increases to 9.4%, but it's still small enough to suggest that philosophers in general don't think of skepticism as having the upper hand once the reasons for and against it are examined carefully.

For detailed discussion of your second question, you might start with the SEP entry on "Certainty". I hope you find these resources helpful.