Bitwise Operators - General Questions

What will be the output of the program?

#include <stdio.h>

int main(void) {
    printf("%d\n", 8 | 3);
    return 0;
}

What will be the output of the program?

#include <stdio.h>

int main(void) {
    int x = 12;
    x |= 1 << 0;
    printf("%d\n", x);
    return 0;
}

What will be the output of the program?

#include <stdio.h>

int main(void) {
    int x = 15;
    x &= ~(1 << 2);
    printf("%d\n", x);
    return 0;
}

What will be the output of the program?

#include <stdio.h>

int main(void) {
    int x = 5, y = 9;
    x ^= y; y ^= x; x ^= y;
    printf("%d %d\n", x, y);
    return 0;
}

What will be the output of the program?

#include <stdio.h>

int main(void) {
    printf("%d\n", 100 >> 2);
    return 0;
}