Find the following values.
(a) $\lfloor 1.1 \rfloor$

(b) $\lceil 1.1 \rceil$

(c) $\lfloor -0.1 \rfloor$

(d) $\lceil -0.1 \rceil$

(e) $\lceil 2.99 \rceil$

(f) $\lceil -2.99 \rceil$

(g) $\lfloor \frac{1}{2} + \lceil \frac{1}{2} \rceil \rfloor$

(h) $\lceil \lfloor \frac{1}{2} \rfloor + \lceil \frac{1}{2} \rceil + \frac{1}{2} \rceil$