The least non-negative remainder when 64 x 65 x 66 is divided by 67, is

Which of the following holds true?

(A) $26\equiv1(mod\ 5)$

(B) $17\equiv3(mod\ 8)$

(C) $-30\equiv-15(mod\ 3)$

(D) $39\equiv12(mod\ 7)$

Choose the correct answer from the options given below:

The unit's digit in $13^{61}$ is

$3^{16}$ (mod 4) is equal to

The units digit in $12^{108}$ is:

The remainder when $(672 + 541 + 383 + 295 + 101 + 86)$ is divided by 3, is:

In a game of billiards, A can give B, 15 points in 60 and A can give C, 20 points in 60. How many points can B give C in a game of 90?