Find the next number in the sequence

1, 2, 6, 21, 88, __?

What does this below rebus puzzle mean?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

What does this rebus mean?

O
N
C
E
TIME

Can you name some countries which do not have the alphabet 'A' in them?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

What number divided by 4 is the same as that number minus 4?

How many bananas can you eat if your stomach is empty?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?